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2. Using Cutting-Edge Financial Products To Empower Hands-On Philanthropy And Sustainable Investment

Author

Glover, Stephanie

Subjects
Philanthropy -- Finance -- Methods -- Forecasts and trends, Company financing, Market trend/market analysis, Business, international
Abstract

Modern philanthropists are, more than ever, eager to be closely involved in the process of conducting philanthropy. From the initial offering up of capital all the way through to assessing [...]

Published
2024

4. Characterisation of half-metallic thin films using polarised neutron reflectometry

Author

Glover, Stephanie E.

Subjects
530, QC Physics
Abstract

Half-metallic (HM) materials are promising candidates for spintronic devices due to their 100% spin polarisation at the Fermi level and their high TC, making them robust to thermal fluctuations. For HM to be used in devices, they need to be in thin film form and retain both SP and magnetisation through the film and at the substrate/interface. High quality thin films of both Co2FeAl0.5Si0.5 and Fe3O4 described in this thesis have been grown by collaborators, and are theoretically predicted to be HM. HM in a film can be indicated by measurements of the magnetic moment. This thesis shows that polarised neutron reflectivity (PNR) data from these HMs can be fitted to obtain the magnetisation profiles perpendicular to the surface. PNR measurements are fitted simultaneously with X-ray reflectivity. Complementary techniques such as microscopy, magnetometry and X-ray diffraction are used in order to limit the fit, give confidence in the extracted structural and magnetic profiles and to help explain the underlying reasons for the magnetic properties. One chapter is dedicated to describing the set up and methodology of reflectivity fitting. Co2FeAl0.5Si0.5 grown on Si(111) has both extended surface and interface regions, the latter due to Si diffusion as shown by microscopy. The structural and magnetic parameters in this region are not well defined and become strongly coupled creating non-unique solutions to the fit of the reflectivity data. One model uses electron energy loss spectroscopy data to constrain the composition across the interface, which limits the fit. This sample is found to have a magnetic dead layer at the interface. Co2FeAl0.5Si0.5 grown on Ge(111) on the other hand, has a small interface region due to lack of Ge diffusion from the substrate. As the fit parameters are better defined, a unique solution to the reflectivity data is obtained. A magnetic moment corresponding to HM is obtained for both Ge grown films with the decrease in magnetisation towards the substrate. Three samples of Fe3O4 grown on MgO(111) with different post-annealing temperatures were also studied. Structural and magnetic experimental techniques are combined to understand the affect post-annealing temperature has on the film properties. An unusual substrate/film epitaxial relationship is found out of plane: MgO(111)||Fe3O4(100). Further temperature dependent studies investigate the change in magnetism below the Verwey transition TV ~ 120 K.

Published
2018

5. Protocol for direct reporting of awareness in maternity patients (DREAMY): a prospective, multicentre cohort study of accidental awareness during general anaesthesia

Author

A'Court, Alicja, Abdel-Gadir, Dina, Abdu, Ayman, Abisogun, Caroline, Aboud, Zainab, Abrams, Judith, Ackerman, Andrea, Adamso, Christine, Addison, Rachel, Adeyeye, Adedayo, Adler, Rachel, Aduse-Poku, Maame, Adyanthaya, Siddharth, Ahmad, Najmiah, Ahmed, Dabeeruddeen, Ahmed, Atif, Akindele, Bucky, Akindele, Olubukola, Akrimi, Sonia, Al-Rawi, Samar, Ali, Yousif, Allam, Jo, Allana, Alisha, Allen, Kellie, Allen, Orlanda, Amaradasa, Natasha, Amarasekara, Lareina, Amoakwa-adu, Freda, Anandageetha, Padmanabhan, Anandakrishnan, Suresh, Anandanadesan, Rathai, Anderson, Michelle, Apps, Simon, Aquilina, Audrey, Arbane, Gill, Arch, Alice, Armstrong, Sarah, Arya, Rita, Ashiru, Gloria, Ashpole, Keri, Atkinson, Claire, Atkinson, Francesca, Auer, Elizabeth, Avery, Ben, Babio-Galan, Maite, Bader, Hareth, Badham, George, Bagchi, Subha, Bailey, Sarah, Baird, Yolanda, Balaka, Cristina, Baldwin, Melissa, Balfour, Paul, Bali, Shreya, Banks, Samantha, Barclay, Philip, Barnes, Lucy, Barnes, Thomas, Barot, Niraj, Barrett, Stephen, Barrett, Venetia, Barrett, Kate, Bates, Louise, Batte, Katherine, Baytug, Beki, Behravesh, Mona, Bell, Suzanne, Benloch, Raul, Bentley, Richard, Berg, Jennifer, Berwick, Charlotte, Berwick, Richard, Bhadange, Rashmi, Bhattacharyya, Sanjoy, Bielskute, Egidija, Birch, Sian, Bird, Scott, Bird, Ruth, Birts, William, Black, Becky, Blagova, Tatyana, Blake, Holly, Blightman, Oliver, Blunden, Susara, Bolton, Richard, Borkett-Jones, Caroline, Boselli, John, Bowen, Manuella, Bowen, Ruth, Bowye, James, Boyle, Henry, Brar, Zameen, Bray, Jo, Brayshaw, Samantha, Bressington, Catherine, Brewer, Alison, Brice, Naomi, Bridge, Laura, Briscoe, James, Brocklesby, Sonia, Brown, Harry, Brown, Sarah, Brunnen, Derek, Burijintichenna, Keshavareddy, Burnard, Sara, Burtt, Agnieszka, Buswell, Victoria, Bykar, Hannah, Cairney, Matthew, Calvert, Clare, Camarasa, Laura, Campbell, Natasha, Campbell-Jones, Frederick, Cantliffe, Jane, Carrol, William, Carvalho, Joanna, Cashell, Catherine, Cassie, Sarah, Cassim, Kadu, Chandler, Marika, Chapman, Rachel, Charles, Robert, Chen, Ping, Cheyne, Deanne, Chima, Kiran, Chin, Floju, Chirvasuta, Radu, Shao Chong, Martin, Choudhury, Sadia, Chowdhury, Priyakam, Christmas, Tracey, Chughwani, Shilpa, Ciechanowicz, Sarah, Clarey, Emma, Coe, Rob, Cohen, Jolyon, Coker, Nicholas, Collins, Karen, Collis, Lauren, Comar, Jasna, Conroy, Marianne, Constantin, Kathy, Corfe, Jeremy, Coulborn, Elaine, Cowie, Vanessa, Crone, Rachel, Cronin, James, Crooks, Jennifer, Crowther, Nicola, Crowther, Elizabeth, Cruz, Carina, Curtis, Alexa, Curtis, Sarah, Curtis, Sam, Dabrowicz, Adrian, Daines, Nick, Dalal, Viral, Dannatt, Peter, Das, Dinesh, Dash, Jennifer, Davidson, Katherine, Davies, Sarah, Davis, Yvette, Dawson, James, Dean, Jonathan, Dean, Caroline, Denman, Jane, Desai, Neel, Dewan, Preeti, Dimont, Sarah, Donovan, Clare, Doraiswami, Mano, Doughty, Kate, Douglass, Jamie, Dower, Michelle, Downing, Samantha, Duberry, Wendy, Duckham, Emily, Dudgeon, Lucy, Dukes, Stephanie, Dunn, Leigh, Duraiswamy, Venkat, O' Dwyer, Anthony, Dyer, Kristyn, Eapen, Suresh, Earl, Mark, Eason, Sally, Edwards, Kylie-Ellen, Edwards, Zara, Egole, Osinachi, Ekpa, John, El-Amin, Olivia, El-Boghdadly, Kariem, Elbasir, Okba, Eldridge, James, Elgie, Laura, Ellington, Matt, Elliott, Katharine, Elliott, Justine, Elmi, Mohamed, Elnoumeir, Ramy, Emeakaraoha, Eunice, Evans, Matt, Everett, Mary, Fabb, Philippa, Farooq, Hadia, Farrimond, Rohan, Faulds, Fiona, Fawcett, Erik, Feneley, Andrew, Fernando, Dinushi, Ferns, Janis, Finlay, Claire, Fitzgerald, Simon, O'Flaherty, Doireann, Fleet, Mark, Fletcher, Lydia, Fludder, Vanessa, Follet, Terri, Forbes, Jane, Forth, Mark, Foster, Greg, Francis, John, Fraser, Kate, Friedman, Lauren, Fruggeri, Luca, Fulton, Laura, Funnell, Sam, Gadre, Amit, Gandhi, Ajay, Gardiner, Harriet, Garner, Zoe, Garvey, Gráinne, Gately, Tom, George, Richard, Gillespie, Siobhan, Glover, Stephanie, Goddard, Jennifer, Goodman, Ben, Gopal, Tarikere, Graham, George, Green, David, Griffin, Denise, Griffith, Jessica, Grigsby, Stephanie, Grindey, Julie, Griffiths, Huw, Groome, Jonathan, Grother, Christine, Grounds, Gabrielle, Groves, Alice, Guha, Abhik, Gunawardhana, Amila, Gupta, Aman, Gupta, Rekha, Gutsell, James, Haddon, Richard, Hadi, Dina, Hadjipavlou, Nicola, Hammerbeck, Henry, Hammon, Laura, Hammond, Sarah, Hampanna, Hampesh, Hancock, Holly, Handapangoda, Hemantha, Haroon-Mowahed, Yumna, Harpham, Dawn, Harris, Grant, Harrison, Abigail, Harshan, Divya, Hartopp, Andrew, Harty, Eoin, Haslam, Nick, Hawkins, Gemma, Hawkins, Edith, Hawksey, Sarah, Hays, Carole, Hazelton, Tracy, Heavyside, Andrew, Hemeson, Chibuzo, Henderson, Katrina, Henry, Oliver, Herbert, Lara, Higgins, Nikki, Hilton, James, Hindmoor, Claire, Hitchcock, Rachael, Hobbs, Laura, Homsy, Michele, Honeywell, Cassandra, Hoque, Nazima, House, Kirsty, Howle, Ryan, Tiller, Amanda, Huniak, Matthew, Hunte, Jeremy, Husain, Tauqeer, Huson, Coralie, Hussain, Catriona, Hussain, Tawhida, Hussein, Zainab, Hyams, Jeremy, Hyde, Eleanor, Iaverdino, Marina, Ignacka, Alex, Innes, Erin, Ioannidis, Stefanos, Iqbal, Rehana, Ismail, Fahja, Jackson, Jenny, Jackson, Michael, Jackson, Guy, Jacobs, Robyn, Jadhav, Poonam, Jalaly, Aisha, James, Lorraine, James, Monica, Jani, Surekha, Jeganathan, Chandran, Joannides, Claire, Johnson, Robert, Johnson, Thosa, Johnston, Carolyn, Jones, Reeanne, Jones, Tom, Kadr, Miran, Kainth, Rasmeet, Kane, Jenna, Kanji, Rafiq, Kannanparambil, Sunil, Kar, Girish, Kasianandan, Theanalli, Kaskos, Husam, Kavanagh, Lisa, Kaye, Richard, Kelliher, Leith, Kelliot, Serena, Kelly, Jemma, Kelly, Jenna, Kenyon, Carol, Kessack, Laura, Kestner, Samuel, Khaku, Mohammed, Khaleeq, Sophia, Khan, Pervaz, Khan, Sabeen, Kidwai, Usamah, King, Christopher, King, Helen, Kingston, Elizabeth, Kok, Waisun, Konig, Rebekka, Konstantinova, Zheyna, Krishnan, Priya, Kua, Justin, Kuntumalla, Kavitha, Kursumovic, Emira, Kurzatkowski, Krzysztof, Kuttambakam, Hariprasad, Lane, Katherine, Lane, Sophie, Langton, Andrew, Latif, Hamad, Lau, Norlan, Laxman, Shyam, Laycock, Helen, Lee, Rachel, Leonardi, Silvia, Light, Karen, Lightfoot, Heidi, Liu, Shuang, Liyanage, Sanduni, Lowe, Jessica, Lucas, Nuala, Lungu, Miyoba, Lunn, Marianne, Lynes, Heather, Machavarapu, Kishore, Mackenzie, Matthew, Major, Jonathan, Male, Victoria, Malik, Zain, Manso, Katarina, Maquinana, Myrna, Marciniak, Katarzyna, Maronge, Lizzie, Marsh, Chris, Martella, Carmela, Martin, Nicki, Martins, Nicole, Marway, Jaspreet, Mason, Louisa, Mason, Lucy, Masood, Nadia, Masters, James, Maton-Howarth, Matthew, Mazzola, Francesca, McAllister, Tamsin, McCarthy, Rachel, McCormick, Claire, McCready, Sharon, McDougall, Steffan, Mcewan, Lorna, McGarry, Jon, McKevitt, Helen, Mckinley, Stephanie, Mckskeane, Anna, McMaster, Eloise, McMonagle, Martina, McNamara, Helen, McPhee, Hannah, McRae, Laura, Mead, Dee, Meadows, Emma, Mehta, Madhur, Meikle, Joanne, Metodiev, Yavor, Michael, Chloe, Millar, Victoria, Miller, Sarah, Miller, Gregg, Milne, Sezanne, Miltsios, Kostas, Misquita, Lucia, Misquita, Simone, Mittal, Manasi, Mohamed, Mohamed, Powell Monaghan, Katherine, Monk, Joanna, Monkhouse, Alexandra, Monks, David, Montague, Laura, Moon, Angela, Moran, Jennifer, Moreton, Annette, Morgan, Endaf, Morgan, Oliver, Morland, Danny, Morosan, Monica, Morris, Kimberley, Morris, Andrea, Moser, Clare, Mount, Manulella, Muir, Carol, Mupudzi, McDonald, Murali, Mayur, Murdoch, Iona, Murray, Heather, Murray, Theresa, Murrell, Karen, Narasimha Murthy, Girish, Neeley, Diana, Nei, Hannah, Neil, Kerry, Nejim, Tara, Nel, Mark, Nicholson, Anne, Nicklin, Angela, Nolan, Catherine, Nolan, Tracey, Nurmi, Eveliina, O'Neill, Bridie, Oakes, Christie, Oakes, Neil, Ochoa-Ferraro, Maria, Odeleye, Nike, Oliver, Katy, Oliver, Mark, Onslow, Julie, Onwochei, Desire, Oommen, Thomas, Orr, Tim, Osagie, Osato, Osborn, Hannah, Overend, Jennie, Owston, Hazel, Pack, Emma, Padhi, Pulak, Palani, Prabvathy, Pandey, Rajesh, Pandya, Dhruti, Panesar, Navjot, Papageorgiou, Con, Papanastasiou, Georgios, Papoutsos, Costas, Pararajasingham, Suji, Parry, James, Patel, Hasita, Patel, Jaishel, Patel, Jiten, Patel, Kaumudi, Patel, Kiran, Patel, Mitul, Patel, Reshma, Patel, Ruchira, Patel, Nimisha, Pathak, Sangeeta, Pearson, Fiona, Peciulene, Viktorija, Peers, Beth, Peirce, Benjamin, Pepper, Stacey, Perinpanayagam, Jasmina, Perry, Hollie, Petrova, Nadya, Phillips, Trudie, Phillips, Sioned, Phylactides, Leonidas, Pilkington, Felicity, Plumb, James, Poimenidi, Evangelia, Sau Kuk Poon, Anna, Potter, Thomas, Poultney, Una, Powell, Lucy, Prenter, Andrew, Preston, Katie, Price, Anna, Pritchard, Naomi, Pullen, Jenny, Purohit, Manishi, Quamina, Charlotte, Qureshi, Jibran, Rajput, Zahra, Ramage, Stephen, Ramanathan, Tamilselvi, Ranasinghe, Upeka, Ranatunga, Kalum, Rand, Abby, Randive, Seema, Rangarajan, Desikan, Rao, Chandana, Rao Pelluri, Sambasiva, Ratnasingham, Antony, Razzaque, Jamil, Reddy, Anuvidya, Redington, Katie, Reel, Emma, Remeta, Peter, Ricco, Francesca, Riccoboni, Anna, Rice, Polly, Rich, Mel, Richards, Nicole, Riches, Joanne, Ripoll, Simon, Roberts, Fleur, Roberts, Kitty, Robins, Kay, Robinson, Susie, Roche, Samantha, Rojo, Maria, Carmela Romano, Milena, Rosser, Hilary, Roughley, Lindsay, Routley, Catriona, Rowley, Christine, Rudra, Pallab, Russell, Robin, Ryan, Christine, Saad, Chloe, Sadeghi, Abtin, Salberg, Armorel, Samuel, Matt, Samuels, Rebecca, Sanapala, Suresh, Sanusi, Seliat, Sarao, Sarbpreet, Sathyabhama, Sathyabhama, Saunders, Zoe, Sawarzynska-ryszka, Bernadetta, Sceales, Panagiota, Sceales, Penny, Schumacher, Natasha, Schwartz, Nuala, Sellers, Claudia, Sellers, Heather, Sellick, Jessica, Sen, Soumen, Senaratne, Dhaneesha, Senbeto, Sarah, Seneviratna, Dineth, Setty, Thunga, Shah, Raj, Shah, Sonia, Shambly, James, Sharafudeen. Imran Sharieff, Saju, Sharifi, Laurence, Sharpe, Lisa, Shaw, Michael, Sheldrake, Ian, Shinde, Priya, Shonfeld. Jonathon Short, Adam, Siah, Julian, Sibug. Omar Siddique, Sheena, Siew, Sara, Simpson, Matthew, Singleton, Georgina, Sinha, Kathryn, Sinha, Aneeta, Sinnott, Matthew, Sivadhas, Harry, Sivakumar, Sivanth, Sivarajan, Boopathi, Sivarajan, Sinduja, Skeoch, Chris, Slade, Samuel, Slater, Paul, Smith, Camilla, Smith, Carys, Smith, Christopher, Smith, James, Smith, Lorraine, Smith, Annika, Smith, Edward, Smith, Ruth, Smith, Sue, Smith, Tim, Smithers, Helen, Smolen, Sue, Smyth, Claire, Snel, Toni, Snipe, Carol, Soltanifar, Sam, Sonawane, Nilesh, Soundararaja, Andal, Spence, Emily, Spiliopoulos, Mark, Srivastava, Chhavi, Stacey, Karen, Stafford, Helena, Staines, Nikki, Stead, Richard, Stevens, Emma, Stilwell, Alex, Stocks, Gary, Stokes, Aaron, Stone, Christopher, Straughan, Ben, Subbarathnam, Vanitha, Sudunagunta, Srinath, Sultan, Pervez, Suppiah, Puvan, Surve, Priyanka, Sutherland, Angus, Swanton, Rob, Swarbrick, Claire, Swinson, Amy, Syrrakou, Eleni, Tadbiri, Shahrzad, Tamhane, Preetam, Tamilselvan, Perumal, Tan, Andrew, Tanna, Shamil, Tarft, Hayley, Tarry, Laura, Taylor, Ian, Taylor, Suzanne, Tebbot, Julie, Theron, Svetlana, Thomas, Megan, Todd, Sarah, Tolliday, Hermione, Topham, Charlotte, Tovell, Nicholas, Traves, Martyn, Trodd, Dawn, Tufchi, Aseem, Turley, Katie, Turnbull, Marc, Turnbull, Chris, Turner, Oliver, Turner, William, Turney, Sharon, Tyagi, Eleanor, Uncles, David, Unsworth, Vanessa, Vadnere, Pradnya, Varadan, Rama, Vasishta, Vik, Veal, Andrew, Vedham, Lalitha, Venkaya, Jessica, Verghese, Miriam, Veronica, Icel, Vidanagamage, Dinesh, Vincent, Rachel, Vyapury, Vinodhan, Wain, Harris, Walbridge, Fiona, Walker, Elaine, Walsh, Pete, Walshe, Eleanor, Walters, Michelle, Wan, Yize, Wang, Cherry, Wankhade, Kavita, Waters, Gareth, Watts, Christopher, Webber, Alex, Wedgwood, Tom, Wee, Michael, Wellstead, Susan, White, Alison, Whitear, Michael, Whitefield, Lucy, Wilkinson, Sarah, Williams, Lauren, Williams, Rhys, Wilson, Dawn, Wilson, Samantha, Wimble, Katie, Winkley, Elaine, Winslow, Luke, Winwright, Paul, Wloch, Karolina, Wong, Gideon, Wong, Hannah, Man Wong, Jan, Wood, Tim, Wray, Sarah, Wrench, Ian, Wu, James, Wynn, Kynn, Yap, Yeng, Kuan Yeow, Chia, Young, Emily, Yusaf, Alex, Uz Zafar, Saeed, Zeinali, Darius, Zhang, Sheldon, Zope, Sarvesh, Zucco, Liana, Anwar, Sibtain, Blunt, Nadia, Cronin, John, Grover, Vimal, Grailey, Kate, Grey, Martin, Highton, David, Hopkins, Phil, Kemp, Harriet, Lo, Queenie, Martin, Daniel, Morkane, Clare, O'Carroll, James, Oliver, Charles, Post, Benjamin, Visram, Anil, Wickham, Alex, Odor, P.M., Bampoe, S., Lucas, D.N., Moonesinghe, S.R., Andrade, J., and Pandit, J.J.

Published
2020
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9. Guernsey Attends The UN FC4S Annual Meeting

Author

Glover, Stephanie

Subjects
Sustainable development -- Conferences, meetings and seminars -- Laws, regulations and rules, Climatic changes -- Social aspects, Government regulation, Business, international, United Nations. Development Programme -- Laws, regulations and rules -- Conferences, meetings and seminars
Abstract

Guernsey has been a long standing member of the United Nations Financial Centres for Sustainability network since 2018. The UN FC4S sits in within the United Nations Development Programme (UNDP) [...]

Published
2022

13. Impressions Of COP26

Author

Glover, Stephanie

Subjects
Guernsey -- Economic aspects -- Environmental aspects, United Nations Climate Change Conference -- 2021 AD, Sustainable development -- Forecasts and trends -- Conferences, meetings and seminars -- 2021 AD, Market trend/market analysis, Business, international
Abstract

Written by Stephanie Glover, Guernsey Green Finance WE ARE GUERNSEY Green Finance Manager Stephanie Glover was delighted to attend COP26 in Glasgow. Along with our Strategic Adviser for Green & [...]

Published
2021

14. Protocol for direct reporting of awareness in maternity patients (DREAMY): a prospective, multicentre cohort study of accidental awareness during general anaesthesia

Author

Odor, P.M., primary, Bampoe, S., additional, Lucas, D.N., additional, Moonesinghe, S.R., additional, Andrade, J., additional, Pandit, J.J., additional, A'Court, Alicja, additional, Abdel-Gadir, Dina, additional, Abdu, Ayman, additional, Abisogun, Caroline, additional, Aboud, Zainab, additional, Abrams, Judith, additional, Ackerman, Andrea, additional, Adamso, Christine, additional, Addison, Rachel, additional, Adeyeye, Adedayo, additional, Adler, Rachel, additional, Aduse-Poku, Maame, additional, Adyanthaya, Siddharth, additional, Ahmad, Najmiah, additional, Ahmed, Dabeeruddeen, additional, Ahmed, Atif, additional, Akindele, Bucky, additional, Akindele, Olubukola, additional, Akrimi, Sonia, additional, Al-Rawi, Samar, additional, Ali, Yousif, additional, Allam, Jo, additional, Allana, Alisha, additional, Allen, Kellie, additional, Allen, Orlanda, additional, Amaradasa, Natasha, additional, Amarasekara, Lareina, additional, Amoakwa-adu, Freda, additional, Anandageetha, Padmanabhan, additional, Anandakrishnan, Suresh, additional, Anandanadesan, Rathai, additional, Anderson, Michelle, additional, Apps, Simon, additional, Aquilina, Audrey, additional, Arbane, Gill, additional, Arch, Alice, additional, Armstrong, Sarah, additional, Arya, Rita, additional, Ashiru, Gloria, additional, Ashpole, Keri, additional, Atkinson, Claire, additional, Atkinson, Francesca, additional, Auer, Elizabeth, additional, Avery, Ben, additional, Babio-Galan, Maite, additional, Bader, Hareth, additional, Badham, George, additional, Bagchi, Subha, additional, Bailey, Sarah, additional, Baird, Yolanda, additional, Balaka, Cristina, additional, Baldwin, Melissa, additional, Balfour, Paul, additional, Bali, Shreya, additional, Banks, Samantha, additional, Barclay, Philip, additional, Barnes, Lucy, additional, Barnes, Thomas, additional, Barot, Niraj, additional, Barrett, Stephen, additional, Barrett, Venetia, additional, Barrett, Kate, additional, Bates, Louise, additional, Batte, Katherine, additional, Baytug, Beki, additional, Behravesh, Mona, additional, Bell, Suzanne, additional, Benloch, Raul, additional, Bentley, Richard, additional, Berg, Jennifer, additional, Berwick, Charlotte, additional, Berwick, Richard, additional, Bhadange, Rashmi, additional, Bhattacharyya, Sanjoy, additional, Bielskute, Egidija, additional, Birch, Sian, additional, Bird, Scott, additional, Bird, Ruth, additional, Birts, William, additional, Black, Becky, additional, Blagova, Tatyana, additional, Blake, Holly, additional, Blightman, Oliver, additional, Blunden, Susara, additional, Bolton, Richard, additional, Borkett-Jones, Caroline, additional, Boselli, John, additional, Bowen, Manuella, additional, Bowen, Ruth, additional, Bowye, James, additional, Boyle, Henry, additional, Brar, Zameen, additional, Bray, Jo, additional, Brayshaw, Samantha, additional, Bressington, Catherine, additional, Brewer, Alison, additional, Brice, Naomi, additional, Bridge, Laura, additional, Briscoe, James, additional, Brocklesby, Sonia, additional, Brown, Harry, additional, Brown, Sarah, additional, Brunnen, Derek, additional, Burijintichenna, Keshavareddy, additional, Burnard, Sara, additional, Burtt, Agnieszka, additional, Buswell, Victoria, additional, Bykar, Hannah, additional, Cairney, Matthew, additional, Calvert, Clare, additional, Camarasa, Laura, additional, Campbell, Natasha, additional, Campbell-Jones, Frederick, additional, Cantliffe, Jane, additional, Carrol, William, additional, Carvalho, Joanna, additional, Cashell, Catherine, additional, Cassie, Sarah, additional, Cassim, Kadu, additional, Chandler, Marika, additional, Chapman, Rachel, additional, Charles, Robert, additional, Chen, Ping, additional, Cheyne, Deanne, additional, Chima, Kiran, additional, Chin, Floju, additional, Chirvasuta, Radu, additional, Shao Chong, Martin, additional, Choudhury, Sadia, additional, Chowdhury, Priyakam, additional, Christmas, Tracey, additional, Chughwani, Shilpa, additional, Ciechanowicz, Sarah, additional, Clarey, Emma, additional, Coe, Rob, additional, Cohen, Jolyon, additional, Coker, Nicholas, additional, Collins, Karen, additional, Collis, Lauren, additional, Comar, Jasna, additional, Conroy, Marianne, additional, Constantin, Kathy, additional, Corfe, Jeremy, additional, Coulborn, Elaine, additional, Cowie, Vanessa, additional, Crone, Rachel, additional, Cronin, James, additional, Crooks, Jennifer, additional, Crowther, Nicola, additional, Crowther, Elizabeth, additional, Cruz, Carina, additional, Curtis, Alexa, additional, Curtis, Sarah, additional, Curtis, Sam, additional, Dabrowicz, Adrian, additional, Daines, Nick, additional, Dalal, Viral, additional, Dannatt, Peter, additional, Das, Dinesh, additional, Dash, Jennifer, additional, Davidson, Katherine, additional, Davies, Sarah, additional, Davis, Yvette, additional, Dawson, James, additional, Dean, Jonathan, additional, Dean, Caroline, additional, Denman, Jane, additional, Desai, Neel, additional, Dewan, Preeti, additional, Dimont, Sarah, additional, Donovan, Clare, additional, Doraiswami, Mano, additional, Doughty, Kate, additional, Douglass, Jamie, additional, Dower, Michelle, additional, Downing, Samantha, additional, Duberry, Wendy, additional, Duckham, Emily, additional, Dudgeon, Lucy, additional, Dukes, Stephanie, additional, Dunn, Leigh, additional, Duraiswamy, Venkat, additional, O' Dwyer, Anthony, additional, Dyer, Kristyn, additional, Eapen, Suresh, additional, Earl, Mark, additional, Eason, Sally, additional, Edwards, Kylie-Ellen, additional, Edwards, Zara, additional, Egole, Osinachi, additional, Ekpa, John, additional, El-Amin, Olivia, additional, El-Boghdadly, Kariem, additional, Elbasir, Okba, additional, Eldridge, James, additional, Elgie, Laura, additional, Ellington, Matt, additional, Elliott, Katharine, additional, Elliott, Justine, additional, Elmi, Mohamed, additional, Elnoumeir, Ramy, additional, Emeakaraoha, Eunice, additional, Evans, Matt, additional, Everett, Mary, additional, Fabb, Philippa, additional, Farooq, Hadia, additional, Farrimond, Rohan, additional, Faulds, Fiona, additional, Fawcett, Erik, additional, Feneley, Andrew, additional, Fernando, Dinushi, additional, Ferns, Janis, additional, Finlay, Claire, additional, Fitzgerald, Simon, additional, O'Flaherty, Doireann, additional, Fleet, Mark, additional, Fletcher, Lydia, additional, Fludder, Vanessa, additional, Follet, Terri, additional, Forbes, Jane, additional, Forth, Mark, additional, Foster, Greg, additional, Francis, John, additional, Fraser, Kate, additional, Friedman, Lauren, additional, Fruggeri, Luca, additional, Fulton, Laura, additional, Funnell, Sam, additional, Gadre, Amit, additional, Gandhi, Ajay, additional, Gardiner, Harriet, additional, Garner, Zoe, additional, Garvey, Gráinne, additional, Gately, Tom, additional, George, Richard, additional, Gillespie, Siobhan, additional, Glover, Stephanie, additional, Goddard, Jennifer, additional, Goodman, Ben, additional, Gopal, Tarikere, additional, Graham, George, additional, Green, David, additional, Griffin, Denise, additional, Griffith, Jessica, additional, Grigsby, Stephanie, additional, Grindey, Julie, additional, Griffiths, Huw, additional, Groome, Jonathan, additional, Grother, Christine, additional, Grounds, Gabrielle, additional, Groves, Alice, additional, Guha, Abhik, additional, Gunawardhana, Amila, additional, Gupta, Aman, additional, Gupta, Rekha, additional, Gutsell, James, additional, Haddon, Richard, additional, Hadi, Dina, additional, Hadjipavlou, Nicola, additional, Hammerbeck, Henry, additional, Hammon, Laura, additional, Hammond, Sarah, additional, Hampanna, Hampesh, additional, Hancock, Holly, additional, Handapangoda, Hemantha, additional, Haroon-Mowahed, Yumna, additional, Harpham, Dawn, additional, Harris, Grant, additional, Harrison, Abigail, additional, Harshan, Divya, additional, Hartopp, Andrew, additional, Harty, Eoin, additional, Haslam, Nick, additional, Hawkins, Gemma, additional, Hawkins, Edith, additional, Hawksey, Sarah, additional, Hays, Carole, additional, Hazelton, Tracy, additional, Heavyside, Andrew, additional, Hemeson, Chibuzo, additional, Henderson, Katrina, additional, Henry, Oliver, additional, Herbert, Lara, additional, Higgins, Nikki, additional, Hilton, James, additional, Hindmoor, Claire, additional, Hitchcock, Rachael, additional, Hobbs, Laura, additional, Homsy, Michele, additional, Honeywell, Cassandra, additional, Hoque, Nazima, additional, House, Kirsty, additional, Howle, Ryan, additional, Tiller, Amanda, additional, Huniak, Matthew, additional, Hunte, Jeremy, additional, Husain, Tauqeer, additional, Huson, Coralie, additional, Hussain, Catriona, additional, Hussain, Tawhida, additional, Hussein, Zainab, additional, Hyams, Jeremy, additional, Hyde, Eleanor, additional, Iaverdino, Marina, additional, Ignacka, Alex, additional, Innes, Erin, additional, Ioannidis, Stefanos, additional, Iqbal, Rehana, additional, Ismail, Fahja, additional, Jackson, Jenny, additional, Jackson, Michael, additional, Jackson, Guy, additional, Jacobs, Robyn, additional, Jadhav, Poonam, additional, Jalaly, Aisha, additional, James, Lorraine, additional, James, Monica, additional, Jani, Surekha, additional, Jeganathan, Chandran, additional, Joannides, Claire, additional, Johnson, Robert, additional, Johnson, Thosa, additional, Johnston, Carolyn, additional, Jones, Reeanne, additional, Jones, Tom, additional, Kadr, Miran, additional, Kainth, Rasmeet, additional, Kane, Jenna, additional, Kanji, Rafiq, additional, Kannanparambil, Sunil, additional, Kar, Girish, additional, Kasianandan, Theanalli, additional, Kaskos, Husam, additional, Kavanagh, Lisa, additional, Kaye, Richard, additional, Kelliher, Leith, additional, Kelliot, Serena, additional, Kelly, Jemma, additional, Kelly, Jenna, additional, Kenyon, Carol, additional, Kessack, Laura, additional, Kestner, Samuel, additional, Khaku, Mohammed, additional, Khaleeq, Sophia, additional, Khan, Pervaz, additional, Khan, Sabeen, additional, Kidwai, Usamah, additional, King, Christopher, additional, King, Helen, additional, Kingston, Elizabeth, additional, Kok, Waisun, additional, Konig, Rebekka, additional, Konstantinova, Zheyna, additional, Krishnan, Priya, additional, Kua, Justin, additional, Kuntumalla, Kavitha, additional, Kursumovic, Emira, additional, Kurzatkowski, Krzysztof, additional, Kuttambakam, Hariprasad, additional, Lane, Katherine, additional, Lane, Sophie, additional, Langton, Andrew, additional, Latif, Hamad, additional, Lau, Norlan, additional, Laxman, Shyam, additional, Laycock, Helen, additional, Lee, Rachel, additional, Leonardi, Silvia, additional, Light, Karen, additional, Lightfoot, Heidi, additional, Liu, Shuang, additional, Liyanage, Sanduni, additional, Lowe, Jessica, additional, Lucas, Nuala, additional, Lungu, Miyoba, additional, Lunn, Marianne, additional, Lynes, Heather, additional, Machavarapu, Kishore, additional, Mackenzie, Matthew, additional, Major, Jonathan, additional, Male, Victoria, additional, Malik, Zain, additional, Manso, Katarina, additional, Maquinana, Myrna, additional, Marciniak, Katarzyna, additional, Maronge, Lizzie, additional, Marsh, Chris, additional, Martella, Carmela, additional, Martin, Nicki, additional, Martins, Nicole, additional, Marway, Jaspreet, additional, Mason, Louisa, additional, Mason, Lucy, additional, Masood, Nadia, additional, Masters, James, additional, Maton-Howarth, Matthew, additional, Mazzola, Francesca, additional, McAllister, Tamsin, additional, McCarthy, Rachel, additional, McCormick, Claire, additional, McCready, Sharon, additional, McDougall, Steffan, additional, Mcewan, Lorna, additional, McGarry, Jon, additional, McKevitt, Helen, additional, Mckinley, Stephanie, additional, Mckskeane, Anna, additional, McMaster, Eloise, additional, McMonagle, Martina, additional, McNamara, Helen, additional, McPhee, Hannah, additional, McRae, Laura, additional, Mead, Dee, additional, Meadows, Emma, additional, Mehta, Madhur, additional, Meikle, Joanne, additional, Metodiev, Yavor, additional, Michael, Chloe, additional, Millar, Victoria, additional, Miller, Sarah, additional, Miller, Gregg, additional, Milne, Sezanne, additional, Miltsios, Kostas, additional, Misquita, Lucia, additional, Misquita, Simone, additional, Mittal, Manasi, additional, Mohamed, Mohamed, additional, Powell Monaghan, Katherine, additional, Monk, Joanna, additional, Monkhouse, Alexandra, additional, Monks, David, additional, Montague, Laura, additional, Moon, Angela, additional, Moran, Jennifer, additional, Moreton, Annette, additional, Morgan, Endaf, additional, Morgan, Oliver, additional, Morland, Danny, additional, Morosan, Monica, additional, Morris, Kimberley, additional, Morris, Andrea, additional, Moser, Clare, additional, Mount, Manulella, additional, Muir, Carol, additional, Mupudzi, McDonald, additional, Murali, Mayur, additional, Murdoch, Iona, additional, Murray, Heather, additional, Murray, Theresa, additional, Murrell, Karen, additional, Narasimha Murthy, Girish, additional, Neeley, Diana, additional, Nei, Hannah, additional, Neil, Kerry, additional, Nejim, Tara, additional, Nel, Mark, additional, Nicholson, Anne, additional, Nicklin, Angela, additional, Nolan, Catherine, additional, Nolan, Tracey, additional, Nurmi, Eveliina, additional, O'Neill, Bridie, additional, Oakes, Christie, additional, Oakes, Neil, additional, Ochoa-Ferraro, Maria, additional, Odeleye, Nike, additional, Oliver, Katy, additional, Oliver, Mark, additional, Onslow, Julie, additional, Onwochei, Desire, additional, Oommen, Thomas, additional, Orr, Tim, additional, Osagie, Osato, additional, Osborn, Hannah, additional, Overend, Jennie, additional, Owston, Hazel, additional, Pack, Emma, additional, Padhi, Pulak, additional, Palani, Prabvathy, additional, Pandey, Rajesh, additional, Pandya, Dhruti, additional, Panesar, Navjot, additional, Papageorgiou, Con, additional, Papanastasiou, Georgios, additional, Papoutsos, Costas, additional, Pararajasingham, Suji, additional, Parry, James, additional, Patel, Hasita, additional, Patel, Jaishel, additional, Patel, Jiten, additional, Patel, Kaumudi, additional, Patel, Kiran, additional, Patel, Mitul, additional, Patel, Reshma, additional, Patel, Ruchira, additional, Patel, Nimisha, additional, Pathak, Sangeeta, additional, Pearson, Fiona, additional, Peciulene, Viktorija, additional, Peers, Beth, additional, Peirce, Benjamin, additional, Pepper, Stacey, additional, Perinpanayagam, Jasmina, additional, Perry, Hollie, additional, Petrova, Nadya, additional, Phillips, Trudie, additional, Phillips, Sioned, additional, Phylactides, Leonidas, additional, Pilkington, Felicity, additional, Plumb, James, additional, Poimenidi, Evangelia, additional, Sau Kuk Poon, Anna, additional, Potter, Thomas, additional, Poultney, Una, additional, Powell, Lucy, additional, Prenter, Andrew, additional, Preston, Katie, additional, Price, Anna, additional, Pritchard, Naomi, additional, Pullen, Jenny, additional, Purohit, Manishi, additional, Quamina, Charlotte, additional, Qureshi, Jibran, additional, Rajput, Zahra, additional, Ramage, Stephen, additional, Ramanathan, Tamilselvi, additional, Ranasinghe, Upeka, additional, Ranatunga, Kalum, additional, Rand, Abby, additional, Randive, Seema, additional, Rangarajan, Desikan, additional, Rao, Chandana, additional, Rao Pelluri, Sambasiva, additional, Ratnasingham, Antony, additional, Razzaque, Jamil, additional, Reddy, Anuvidya, additional, Redington, Katie, additional, Reel, Emma, additional, Remeta, Peter, additional, Ricco, Francesca, additional, Riccoboni, Anna, additional, Rice, Polly, additional, Rich, Mel, additional, Richards, Nicole, additional, Riches, Joanne, additional, Ripoll, Simon, additional, Roberts, Fleur, additional, Roberts, Kitty, additional, Robins, Kay, additional, Robinson, Susie, additional, Roche, Samantha, additional, Rojo, Maria, additional, Carmela Romano, Milena, additional, Rosser, Hilary, additional, Roughley, Lindsay, additional, Routley, Catriona, additional, Rowley, Christine, additional, Rudra, Pallab, additional, Russell, Robin, additional, Ryan, Christine, additional, Saad, Chloe, additional, Sadeghi, Abtin, additional, Salberg, Armorel, additional, Samuel, Matt, additional, Samuels, Rebecca, additional, Sanapala, Suresh, additional, Sanusi, Seliat, additional, Sarao, Sarbpreet, additional, Sathyabhama, Sathyabhama, additional, Saunders, Zoe, additional, Sawarzynska-ryszka, Bernadetta, additional, Sceales, Panagiota, additional, Sceales, Penny, additional, Schumacher, Natasha, additional, Schwartz, Nuala, additional, Sellers, Claudia, additional, Sellers, Heather, additional, Sellick, Jessica, additional, Sen, Soumen, additional, Senaratne, Dhaneesha, additional, Senbeto, Sarah, additional, Seneviratna, Dineth, additional, Setty, Thunga, additional, Shah, Raj, additional, Shah, Sonia, additional, Shambly, James, additional, Sharafudeen. Imran Sharieff, Saju, additional, Sharifi, Laurence, additional, Sharpe, Lisa, additional, Shaw, Michael, additional, Sheldrake, Ian, additional, Shinde, Priya, additional, Shonfeld. Jonathon Short, Adam, additional, Siah, Julian, additional, Sibug. Omar Siddique, Sheena, additional, Siew, Sara, additional, Simpson, Matthew, additional, Singleton, Georgina, additional, Sinha, Kathryn, additional, Sinha, Aneeta, additional, Sinnott, Matthew, additional, Sivadhas, Harry, additional, Sivakumar, Sivanth, additional, Sivarajan, Boopathi, additional, Sivarajan, Sinduja, additional, Skeoch, Chris, additional, Slade, Samuel, additional, Slater, Paul, additional, Smith, Camilla, additional, Smith, Carys, additional, Smith, Christopher, additional, Smith, James, additional, Smith, Lorraine, additional, Smith, Annika, additional, Smith, Edward, additional, Smith, Ruth, additional, Smith, Sue, additional, Smith, Tim, additional, Smithers, Helen, additional, Smolen, Sue, additional, Smyth, Claire, additional, Snel, Toni, additional, Snipe, Carol, additional, Soltanifar, Sam, additional, Sonawane, Nilesh, additional, Soundararaja, Andal, additional, Spence, Emily, additional, Spiliopoulos, Mark, additional, Srivastava, Chhavi, additional, Stacey, Karen, additional, Stafford, Helena, additional, Staines, Nikki, additional, Stead, Richard, additional, Stevens, Emma, additional, Stilwell, Alex, additional, Stocks, Gary, additional, Stokes, Aaron, additional, Stone, Christopher, additional, Straughan, Ben, additional, Subbarathnam, Vanitha, additional, Sudunagunta, Srinath, additional, Sultan, Pervez, additional, Suppiah, Puvan, additional, Surve, Priyanka, additional, Sutherland, Angus, additional, Swanton, Rob, additional, Swarbrick, Claire, additional, Swinson, Amy, additional, Syrrakou, Eleni, additional, Tadbiri, Shahrzad, additional, Tamhane, Preetam, additional, Tamilselvan, Perumal, additional, Tan, Andrew, additional, Tanna, Shamil, additional, Tarft, Hayley, additional, Tarry, Laura, additional, Taylor, Ian, additional, Taylor, Suzanne, additional, Tebbot, Julie, additional, Theron, Svetlana, additional, Thomas, Megan, additional, Todd, Sarah, additional, Tolliday, Hermione, additional, Topham, Charlotte, additional, Tovell, Nicholas, additional, Traves, Martyn, additional, Trodd, Dawn, additional, Tufchi, Aseem, additional, Turley, Katie, additional, Turnbull, Marc, additional, Turnbull, Chris, additional, Turner, Oliver, additional, Turner, William, additional, Turney, Sharon, additional, Tyagi, Eleanor, additional, Uncles, David, additional, Unsworth, Vanessa, additional, Vadnere, Pradnya, additional, Varadan, Rama, additional, Vasishta, Vik, additional, Veal, Andrew, additional, Vedham, Lalitha, additional, Venkaya, Jessica, additional, Verghese, Miriam, additional, Veronica, Icel, additional, Vidanagamage, Dinesh, additional, Vincent, Rachel, additional, Vyapury, Vinodhan, additional, Wain, Harris, additional, Walbridge, Fiona, additional, Walker, Elaine, additional, Walsh, Pete, additional, Walshe, Eleanor, additional, Walters, Michelle, additional, Wan, Yize, additional, Wang, Cherry, additional, Wankhade, Kavita, additional, Waters, Gareth, additional, Watts, Christopher, additional, Webber, Alex, additional, Wedgwood, Tom, additional, Wee, Michael, additional, Wellstead, Susan, additional, White, Alison, additional, Whitear, Michael, additional, Whitefield, Lucy, additional, Wilkinson, Sarah, additional, Williams, Lauren, additional, Williams, Rhys, additional, Wilson, Dawn, additional, Wilson, Samantha, additional, Wimble, Katie, additional, Winkley, Elaine, additional, Winslow, Luke, additional, Winwright, Paul, additional, Wloch, Karolina, additional, Wong, Gideon, additional, Wong, Hannah, additional, Man Wong, Jan, additional, Wood, Tim, additional, Wray, Sarah, additional, Wrench, Ian, additional, Wu, James, additional, Wynn, Kynn, additional, Yap, Yeng, additional, Kuan Yeow, Chia, additional, Young, Emily, additional, Yusaf, Alex, additional, Uz Zafar, Saeed, additional, Zeinali, Darius, additional, Zhang, Sheldon, additional, Zope, Sarvesh, additional, Zucco, Liana, additional, Anwar, Sibtain, additional, Blunt, Nadia, additional, Cronin, John, additional, Grover, Vimal, additional, Grailey, Kate, additional, Grey, Martin, additional, Highton, David, additional, Hopkins, Phil, additional, Kemp, Harriet, additional, Lo, Queenie, additional, Martin, Daniel, additional, Morkane, Clare, additional, O'Carroll, James, additional, Oliver, Charles, additional, Post, Benjamin, additional, Visram, Anil, additional, and Wickham, Alex, additional

Published
2020
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15. Magnetic and structural depth profiles of Heusler alloy Co2FeAl0.5Si0.5 epitaxial films on Si(111)

Author

Glover, Stephanie Elizabeth, Saerbeck, Thomas, Kuerbanjiang, Balati, Ghasemi, Arsham, Kepaptsoglou, Despoina, Ramasse, Quentin, Yamada, Shinya, Hamaya, Kohei, Hase, Thomas P A, Lazarov, Vlado, and Bell, Gavin R.

Abstract

The depth-resolved chemical structure and magnetic moment of Co2FeAl0.5Si0.5 thin films grown on Si(111) have been determined using x-ray and polarized neutron reflectometry. Bulk-like magnetization is retained across the majority of the film, but reduced moments are observed within 45 Å of the surface and in a 25 Å substrate interface region. The reduced moment is related to with compositional changes due to oxidation and diffusion, which are further quantified by elemental profiling using electron microscopy with electron energy loss spectroscopy. The accuracy of structural and magnetic depth-profiles obtained from simultaneous modeling is discussed using different approaches with different degree of constraints on the parameters. Our approach illustrates the challenges in fitting reflectometry data from these multi-component quaternary Heusler alloy thin films.

Published
2018

17. Realisation of magnetically and atomically abrupt half-metal/semiconductor interface: Co2FeSi0.5Al0.5/Ge(111) : Co2FeSi0.5Al0.5/Ge(111)

Author

Nedelkoski, Zlatko, Kuerbanjiang, Balati, Glover, Stephanie E, Sanchez, Ana M., Kepaptsoglou, Demie, Ghasemi, Arsham, Burrows, Christopher W, Yamada, Shinya, Hamaya, Kohei, Ramasse, Quentin M, Hasnip, Philip J, Hase, Thomas, Bell, Gavin R., Hirohata, Atsufumi, and Lazarov, Vlado K

Subjects
Condensed Matter::Materials Science
Abstract

Halfmetal-semiconductor interfaces are crucial for hybrid spintronic devices. Atomically sharp interfaces with high spin polarisation are required for efficient spin injection. In this work we show that thin film of half-metallic full Heusler alloy Co2FeSi0.5Al0.5 with uniform thickness and B2 ordering can form structurally abrupt interface with Ge(111). Atomic resolution energy dispersive X-ray spectroscopy reveals that there is a small outdiffusion of Ge into specific atomic planes of the Co2FeSi0.5Al0.5 film, limited to a very narrow 1 nm interface region. First-principles calculations show that this selective outdiffusion along the Fe-Si/Al atomic planes does not change the magnetic moment of the film up to the very interface. Polarized neutron reflectivity, x-ray reflectivity and aberration-corrected electron microscopy confirm that this interface is both magnetically and structurally abrupt. Finally, using first-principles calculations we show that this experimentally realised interface structure, terminated by Co-Ge bonds, preserves the high spin polarization at the Co2FeSi0.5Al0.5/Ge interface, hence can be used as a model to study spin injection from half-metals into semiconductors.

Published
2016

18. The role of chemical structure on the magnetic and electronic properties of Co2FeAl0.5Si0.5/Si(111) interface

Author

Kuerbanjiang, Balati, Nedelkoski, Zlatko, Kepaptsoglou, Demie, Ghasemi, Arsham, Glover, Stephanie, Yamada, Shinya, Saerbeck, Thomas, Ramasse, Quentin, Hasnip, Philip James, Hase, T P A, Bell, Gavin R., Hamaya, Kohei, Hirohata, Atsufumi, and Lazarov, Vlado

Subjects
QD, QC
Abstract

We show that Co2FeAl0.5Si0.5 film deposited on Si(111) has a single crystal structure and twin related epitaxial relationship with the substrate. Sub-nanometer electron energy loss spectroscopy shows that in a narrow interface region there is a mutual inter-diffusion dominated by Si and Co. Atomic resolution aberration-corrected scanning transmission electron microscopy reveals that the film has B2 ordering. The film lattice structure is unaltered even at the interface due to the substitu- tional nature of the intermixing. First-principles calculations performed using structural models based on the aberration corrected electron microscopy show that the increased Si incorporation in the film leads to a gradual decrease of the magnetic moment as well as significant spin-polarization reduction. These effects can have significant detrimental role on the spin injection from the Co2FeAl0.5Si0.5 film into the Si substrate, besides the structural integrity of this junction.

Published
2016

19. The Examination of Inhibition in Obsessive Compulsive Disorder.

Author

Glover, Stephanie J. and Moyer, Christopher A.

Subjects
*OBSESSIVE-compulsive disorder, *ANXIETY, *RESPONSE inhibition, *CONSTRUCTIVISM (Education), *COGNITIVE therapy
Abstract

Obsessive compulsive disorder (OCD) is characterized by intrusive, anxiety-provoking obsessions and irresistible compulsions that are performed to relieve anxiety. It is theorized that a deficit in inhibition may play a role in obsessive-compulsive symptomology. Areas of cognitive functioning that are affected by inhibition deficits may lead to obsessions and intrusive thoughts, while behavioral inhibition deficits may lead to compulsions. In the current paper, inhibition is examined in individuals with OCD, how such a deficit affects attention, recall, and response control, and how this relates to the disorder's symptoms. A better understanding of these relationships would help conceptualize core deficits in affected individuals and an understanding for treatments that target inhibitory deficits. [ABSTRACT FROM AUTHOR]

Published
2018

20. The role of chemical structure on the magnetic and electronic properties of Co2FeAl0.5Si0.5/Si(111) interface.

Author

Kuerbanjiang, Balati, Nedelkoski, Zlatko, Kepaptsoglou, Demie, Ghasemi, Arsham, Glover, Stephanie E., Yamada, Shinya, Saerbeck, Thomas, Ramasse, Quentin M., Hasnip, Philip J., Hase, Thomas P. A., Bell, Gavin R., Hamaya, Kohei, Hirohata, Atsufumi, and Lazarov, Vlado K.

Subjects
MAGNETIC structure, SINGLE crystals spectra, ELECTRON energy loss spectroscopy, SCANNING transmission electron microscopy, FILM structure, MAGNETIC moments
Abstract

We show that Co2FeAl0.5Si0.5 film deposited on Si(111) has a single crystal structure and twin related epitaxial relationship with the substrate. Sub-nanometer electron energy loss spectroscopy shows that in a narrow interface region there is a mutual inter-diffusion dominated by Si and Co. Atomic resolution aberration-corrected scanning transmission electron microscopy reveals that the film has B2 ordering. The film lattice structure is unaltered even at the interface due to the substitutional nature of the intermixing. First-principles calculations performed using structural models based on the aberration corrected electron microscopy show that the increased Si incorporation in the film leads to a gradual decrease of the magnetic moment as well as significant spin-polarization reduction. These effects can have significant detrimental role on the spin injection from the Co2FeAl0.5Si0.5 film into the Si substrate, besides the structural integrity of this junction. [ABSTRACT FROM AUTHOR]

Published
2016
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22. Characterisation of half-metallic thin films using polarised neutron reflectometry

Author

Glover, Stephanie E.

Subjects
QC
Abstract

Half-metallic (HM) materials are promising candidates for spintronic devices due to their 100% spin polarisation at the Fermi level and their high TC, making them robust to thermal fluctuations. For HM to be used in devices, they need to be in thin film form and retain both SP and magnetisation through the film and at the substrate/interface. High quality thin films of both Co2FeAl0.5Si0.5 and Fe3O4 described in this thesis have been grown by collaborators, and are theoretically predicted to be HM. HM in a film can be indicated by measurements of the magnetic moment. This thesis shows that polarised neutron reflectivity (PNR) data from these HMs can be fitted to obtain the magnetisation profiles perpendicular to the surface.\ud \ud PNR measurements are fitted simultaneously with X-ray reflectivity. Complementary techniques such as microscopy, magnetometry and X-ray diffraction are used in order to limit the fit, give confidence in the extracted structural and magnetic profiles and to help explain the underlying reasons for the magnetic properties. One chapter is dedicated to describing the set up and methodology of reflectivity fitting.\ud \ud Co2FeAl0.5Si0.5 grown on Si(111) has both extended surface and interface regions, the latter due to Si diffusion as shown by microscopy. The structural and magnetic parameters in this region are not well defined and become strongly coupled creating non-unique solutions to the fit of the reflectivity data. One model uses electron energy loss spectroscopy data to constrain the composition across the interface, which limits the fit. This sample is found to have a magnetic dead layer at the interface. Co2FeAl0.5Si0.5 grown on Ge(111) on the other hand, has a small interface region due to lack of Ge diffusion from the substrate. As the fit parameters are better defined, a unique solution to the reflectivity data is obtained. A magnetic moment corresponding to HM is obtained for both Ge grown films with the decrease in magnetisation towards the substrate. Three samples of Fe3O4 grown on MgO(111) with different post-annealing temperatures were also studied. Structural and magnetic experimental techniques are combined to understand the affect post-annealing temperature has on the film properties. An unusual substrate/film epitaxial relationship is found out of plane: MgO(111)||Fe3O4(100). Further temperature dependent studies investigate the change in magnetism below the Verwey transition TV ~ 120 K.

23. Realisation of magnetically and atomically abrupt half-metal/semiconductor interface: Co2FeSi0.5Al0.5/Ge(111).

Author

Nedelkoski, Zlatko, Kuerbanjiang, Balati, Glover, Stephanie E., Sanchez, Ana M., Kepaptsoglou, Demie, Ghasemi, Arsham, Burrows, Christopher W., Yamada, Shinya, Hamaya, Kohei, Ramasse, Quentin M., Hasnip, Philip J., Hase, Thomas, Bell, Gavin R., Hirohata, Atsufumi, and Lazarov, Vlado K.

Abstract

Halfmetal-semiconductor interfaces are crucial for hybrid spintronic devices. Atomically sharp interfaces with high spin polarisation are required for efficient spin injection. In this work we show that thin film of half-metallic full Heusler alloy Co2FeSi0.5Al0.5 with uniform thickness and B2 ordering can form structurally abrupt interface with Ge(111). Atomic resolution energy dispersive X-ray spectroscopy reveals that there is a small outdiffusion of Ge into specific atomic planes of the Co2FeSi0.5Al0.5 film, limited to a very narrow 1 nm interface region. First-principles calculations show that this selective outdiffusion along the Fe-Si/Al atomic planes does not change the magnetic moment of the film up to the very interface. Polarized neutron reflectivity, x-ray reflectivity and aberration-corrected electron microscopy confirm that this interface is both magnetically and structurally abrupt. Finally, using first-principles calculations we show that this experimentally realised interface structure, terminated by Co-Ge bonds, preserves the high spin polarization at the Co2FeSi0.5Al0.5/Ge interface, hence can be used as a model to study spin injection from half-metals into semiconductors. [ABSTRACT FROM AUTHOR]

Published
2016
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24. Magnetic and structural depth profiles of Heusler alloy Co 2 FeAl 0.5 Si 0.5 epitaxial films on Si(1 1 1).

Author

Glover SE, Saerbeck T, Achinuq B, Ghasemi A, Kepaptsoglou D, Ramasse QM, Yamada S, Hamaya K, Hase TPA, Lazarov VK, and Bell GR

Abstract

The depth-resolved chemical structure and magnetic moment of [Formula: see text], thin films grown on Si(1 1 1) have been determined using x-ray and polarized neutron reflectometry. Bulk-like magnetization is retained across the majority of the film, but reduced moments are observed within 45[Formula: see text] of the surface and in a 25[Formula: see text] substrate-interface region. The reduced moment is related to compositional changes due to oxidation and diffusion, which are further quantified by elemental profiling using electron microscopy with electron energy loss spectroscopy. The accuracy of structural and magnetic depth-profiles obtained from simultaneous modeling is discussed using different approaches with different degree of constraints on the parameters. Our approach illustrates the challenges in fitting reflectometry data from these multi-component quaternary Heusler alloy thin films.

Published
2018
Full Text
View/download PDF

25. Realisation of magnetically and atomically abrupt half-metal/semiconductor interface: Co 2 FeSi 0.5 Al 0.5 /Ge(111).

Author

Nedelkoski Z, Kuerbanjiang B, Glover SE, Sanchez AM, Kepaptsoglou D, Ghasemi A, Burrows CW, Yamada S, Hamaya K, Ramasse QM, Hasnip PJ, Hase T, Bell GR, Hirohata A, and Lazarov VK

Abstract

Halfmetal-semiconductor interfaces are crucial for hybrid spintronic devices. Atomically sharp interfaces with high spin polarisation are required for efficient spin injection. In this work we show that thin film of half-metallic full Heusler alloy Co 2 FeSi 0.5 Al 0.5 with uniform thickness and B2 ordering can form structurally abrupt interface with Ge(111). Atomic resolution energy dispersive X-ray spectroscopy reveals that there is a small outdiffusion of Ge into specific atomic planes of the Co 2 FeSi 0.5 Al 0.5 film, limited to a very narrow 1 nm interface region. First-principles calculations show that this selective outdiffusion along the Fe-Si/Al atomic planes does not change the magnetic moment of the film up to the very interface. Polarized neutron reflectivity, x-ray reflectivity and aberration-corrected electron microscopy confirm that this interface is both magnetically and structurally abrupt. Finally, using first-principles calculations we show that this experimentally realised interface structure, terminated by Co-Ge bonds, preserves the high spin polarization at the Co 2 FeSi 0.5 Al 0.5 /Ge interface, hence can be used as a model to study spin injection from half-metals into semiconductors.

Published
2016
Full Text
View/download PDF

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