Search

Your search keyword '"He, Mi"' showing total 11 results
Start Over Author "He, Mi" Database OAIster
11 results on '"He, Mi"'

1. Prediction of Disease Progression of COVID-19 Based upon Machine Learning

Author

Xu,Fumin, Chen,Xiao, Yin,Xinru, Qiu,Qiu, Xiao,Jingjing, Qiao,Liang, He,Mi, Tang,Liang, Li,Xiawei, Zhang,Qiao, Lv,Yanling, Xiao,Shili, Zhao,Rong, Guo,Yan, Chen,Mingsheng, Chen,Dongfeng, Wen,Liangzhi, Wang,Bin, Nian,Yongjian, Liu,Kaijun, Xu,Fumin, Chen,Xiao, Yin,Xinru, Qiu,Qiu, Xiao,Jingjing, Qiao,Liang, He,Mi, Tang,Liang, Li,Xiawei, Zhang,Qiao, Lv,Yanling, Xiao,Shili, Zhao,Rong, Guo,Yan, Chen,Mingsheng, Chen,Dongfeng, Wen,Liangzhi, Wang,Bin, Nian,Yongjian, and Liu,Kaijun

Abstract

Fumin Xu,1,* Xiao Chen,2,* Xinru Yin,1 Qiu Qiu,3 Jingjing Xiao,4 Liang Qiao,5 Mi He,5 Liang Tang,6 Xiawei Li,1 Qiao Zhang,1 Yanling Lv,1 Shili Xiao,1 Rong Zhao,1 Yan Guo,1 Mingsheng Chen,5 Dongfeng Chen,1 Liangzhi Wen,1,7 Bin Wang,1,8 Yongjian Nian,5 Kaijun Liu1,8 1Department of Gastroenterology, Daping Hospital, Army Medical University, Chongqing, People’s Republic of China; 2Department of Nuclear Medicine, Daping Hospital, Army Medical University, Chongqing, People’s Republic of China; 3Department of Gastroenterology, People’s Hospital of Chongqing Hechuan, Chongqing, People’s Republic of China; 4Department of Medical Engineering, Xinqiao Hospital, Army Medical University, Chongqing, People’s Republic of China; 5College of Biomedical Engineering and Imaging Medicine, Army Medical University, Chongqing, People’s Republic of China; 6Department of Internal Medicine, 63790 Military Hospital of the Chinese People’s Liberation Army, Xichang, People’s Republic of China; 7Department of Infectious Disease, Taikang Tongji Hospital, Wuhan, People’s Republic of China; 8Department of Infectious Disease, Wuhan Huoshenshan Hospital, Wuhan, People’s Republic of China*These authors contributed equally to this workCorrespondence: Kaijun LiuDepartment of Gastroenterology, Daping Hospital, Army Medical University, 10 Changjiang Branch Road, Yuzhong District, Chongqing, 400038, People’s Republic of ChinaTel +86 135-9406-7813Email kliu_tmmu@126.comBackground: Since December 2019, COVID-19 has spread throughout the world. Clinical outcomes of COVID-19 patients vary among infected individuals. Therefore, it is vital to identify patients at high risk of disease progression.Methods: In this retrospective, multicenter cohort study, COVID-19 patients from Huoshenshan Hospital and Taikang Tongji Hospital (Wuhan, China) were included. Clinical features showing significant differences b

Published
2021

2. Novel genetic associations for blood pressure identified via gene-alcohol interaction in up to 570K individuals across multiple ancestries

Author

Feitosa, MF, Kraja, AT, Chasman, DI, Sung, YJ, Winkler, TW, Ntalla, I, Guo, XQ, Franceschini, N, Cheng, CY (Ching-Yu), Sim, XL, Vojinovic, Dina, Marten, J, Musani, SK, Li, CW, Bentley, AR, Brown, MR, Schwander, K, Richard, MA, Noordam, R, Aschard, H, Bartz, TM, Bielak, LF, Dorajoo, R, Fisher, V, Hartwig, FP, Horimoto, A, Lohman, KK, Manning, AK, Rankinen, T, Smith, AV, Tajuddin, S M, Wojczynski, MK, Alver, M, Boissel, M, Cai, QY, Campbell, A (Archie), Chai, JF, Chen, X, Divers, J, Gao, C, Goel, A, Hagemeijer, Y, Harris, SE, He, MI, Hsu, FC, Jackson, AU, Kahonen, M, Kasturiratne, A, Komulainen, P, Kuhnel, B, Laguzzi, F, Luan, J, Matoba, N, Nolte, IM, Padmanabhan, S, Riaz, M, Rueedi, R, Robino, A, Said, MA, Scott, RA, Sofer, T, Stancakova, A, Takeuchi, F, Tayo, BO, van der Most, PJ, Varga, TV, Vitart, V, Wang, YJ, Ware, EB, Warren, HR, Weiss, S, Wen, WQ, Yanek, LR, Zhang, WH, Zhao, JH, Afaq, S, Amin, Najaf, Amini, M, Arking, DE, Aung, T, Boerwinkle, E, Borecki, I, Broeckel, U, Brown, M, Brumat, M, Burke, GL, Canouil, M, Chakravarti, A, Charumathi, S, Chen, YDI, Connell, JM, Correa, A, Fuentes, LDL, de Mutsert, R, de Silva, HJ, Deng, X, Ding, J, Duan, Q, Eaton, CB, Ehret, G, Eppinga, RN, Evangelou, E, Fau, JD, Felix, SB, Forouhi, NG, Forrester, T, Franco Duran, OH, Friedlander, Y, Gandin, I, Gao, H, Ghanbari, Mohsen, Gigante, B, Gu, CC, Gu, DF, Hagenaars, SP, Hallmans, G, Harris, TB, He, J, Heikkinen, S, Heng, CK, Hirata, M, Howard, BV, Ikram, Arfan, John, U, Katsuya, T, Khor, CC, Kilpelainen, TO, Koh, WP, Krieger, JE, Kritchevsky, SB, Kubo, M, Kuusisto, J, Lakka, TA, Langefeld, CD, Langenberg, C, Launer, LJ, Lehne, B, Lewis, CE, Li, YZ, Lin, S, Liu, JJ, Liu, JM, Loh, M, Louie, T, Magi, R, McKenzie, CA, Meitinger, T, Metspalu, A, Milaneschi, Y, Milani, L, Mohlke, KL, Momozawa, Y, Nalls, MA, Nelson, CP, Sotoodehnia, N, Norris, JM, O'Connell, JR, Palmer, ND, Perls, T, Pedersen, NL, Peters, A, Peyser, PA, Poulter, N, Raffel, LJ, Raitakari, OT, Roll, K, Rose, LM, Rosendaal, FR, Rotter, JI, Schmidt, CO, Schreiner, PJ, Schupf, N, Scott, WR, Sever, PS, Shi, Y, Sidney, S, Sims, M, Sitlani, CM, Smith, JA, Snieder, H, Starr, JM, Strauch, K, Stringham, HM, Tan, NYQ, Tang, H, Taylor, KD, Teo, YY, Tham, YC, Turner, ST, Uitterlinden, André, Vollenweider, P, Waldenberger, M, Wang, LH, Wang, YX, Wei, W, Williams, C, Yao, J, Yu, CZ, Yuan, JM, Zhao, W, Zonderman, AB, Becker, DM, Boehnke, M, Bowden, DW, Chambers, JC, Deary, IJ, Esko, T, Farrall, M, Franks, PW, Freedman, BI, Froguel, P, Gasparini, P, Gieger, C, Jonas, JB, Kamatani, Y, Kato, N, Kooner, JS, Kutalik, Z, Laakso, M, Laurie, CC, Leander, K, Lehtimaki, T, Study, LC, Magnusson, PKE, Oldehinkel, AJ, Penninx, B, Poiasek, O, Porteous, DJ, Rauramaa, R, Samani, NJ, Scott, J, Shu, XO, van der Harst, P, Wagenknecht, LE, Wareham, NJ, Watkins, H, Weir, DR, Wickremasinghe, AR, Wu, TC, Zheng, W, Bouchard, C, Christensen, K, Evans, MK, Gudnason, V, Horta, BL, Kardia, SLR, Liu, YM, Pereira, AC, Psaty, BM, Ridker, PM, van Dam, RM, Gauderman, WJ, Zhu, XF, Mook, Dennis, Fornage, M, Rotimi, CN, Cupples, LA, Kelly, TN, Fox, ER, Hayward, C, Duijn, Cornelia, Tai, ES, Wong, TY, Kooperberg, C, Palmas, W, Rice, K, Morrison, AC, Elliott, P, Caulfield, MJ, Munroe, PB, Rao, DC, Province, MA, Levy, D, Feitosa, MF, Kraja, AT, Chasman, DI, Sung, YJ, Winkler, TW, Ntalla, I, Guo, XQ, Franceschini, N, Cheng, CY (Ching-Yu), Sim, XL, Vojinovic, Dina, Marten, J, Musani, SK, Li, CW, Bentley, AR, Brown, MR, Schwander, K, Richard, MA, Noordam, R, Aschard, H, Bartz, TM, Bielak, LF, Dorajoo, R, Fisher, V, Hartwig, FP, Horimoto, A, Lohman, KK, Manning, AK, Rankinen, T, Smith, AV, Tajuddin, S M, Wojczynski, MK, Alver, M, Boissel, M, Cai, QY, Campbell, A (Archie), Chai, JF, Chen, X, Divers, J, Gao, C, Goel, A, Hagemeijer, Y, Harris, SE, He, MI, Hsu, FC, Jackson, AU, Kahonen, M, Kasturiratne, A, Komulainen, P, Kuhnel, B, Laguzzi, F, Luan, J, Matoba, N, Nolte, IM, Padmanabhan, S, Riaz, M, Rueedi, R, Robino, A, Said, MA, Scott, RA, Sofer, T, Stancakova, A, Takeuchi, F, Tayo, BO, van der Most, PJ, Varga, TV, Vitart, V, Wang, YJ, Ware, EB, Warren, HR, Weiss, S, Wen, WQ, Yanek, LR, Zhang, WH, Zhao, JH, Afaq, S, Amin, Najaf, Amini, M, Arking, DE, Aung, T, Boerwinkle, E, Borecki, I, Broeckel, U, Brown, M, Brumat, M, Burke, GL, Canouil, M, Chakravarti, A, Charumathi, S, Chen, YDI, Connell, JM, Correa, A, Fuentes, LDL, de Mutsert, R, de Silva, HJ, Deng, X, Ding, J, Duan, Q, Eaton, CB, Ehret, G, Eppinga, RN, Evangelou, E, Fau, JD, Felix, SB, Forouhi, NG, Forrester, T, Franco Duran, OH, Friedlander, Y, Gandin, I, Gao, H, Ghanbari, Mohsen, Gigante, B, Gu, CC, Gu, DF, Hagenaars, SP, Hallmans, G, Harris, TB, He, J, Heikkinen, S, Heng, CK, Hirata, M, Howard, BV, Ikram, Arfan, John, U, Katsuya, T, Khor, CC, Kilpelainen, TO, Koh, WP, Krieger, JE, Kritchevsky, SB, Kubo, M, Kuusisto, J, Lakka, TA, Langefeld, CD, Langenberg, C, Launer, LJ, Lehne, B, Lewis, CE, Li, YZ, Lin, S, Liu, JJ, Liu, JM, Loh, M, Louie, T, Magi, R, McKenzie, CA, Meitinger, T, Metspalu, A, Milaneschi, Y, Milani, L, Mohlke, KL, Momozawa, Y, Nalls, MA, Nelson, CP, Sotoodehnia, N, Norris, JM, O'Connell, JR, Palmer, ND, Perls, T, Pedersen, NL, Peters, A, Peyser, PA, Poulter, N, Raffel, LJ, Raitakari, OT, Roll, K, Rose, LM, Rosendaal, FR, Rotter, JI, Schmidt, CO, Schreiner, PJ, Schupf, N, Scott, WR, Sever, PS, Shi, Y, Sidney, S, Sims, M, Sitlani, CM, Smith, JA, Snieder, H, Starr, JM, Strauch, K, Stringham, HM, Tan, NYQ, Tang, H, Taylor, KD, Teo, YY, Tham, YC, Turner, ST, Uitterlinden, André, Vollenweider, P, Waldenberger, M, Wang, LH, Wang, YX, Wei, W, Williams, C, Yao, J, Yu, CZ, Yuan, JM, Zhao, W, Zonderman, AB, Becker, DM, Boehnke, M, Bowden, DW, Chambers, JC, Deary, IJ, Esko, T, Farrall, M, Franks, PW, Freedman, BI, Froguel, P, Gasparini, P, Gieger, C, Jonas, JB, Kamatani, Y, Kato, N, Kooner, JS, Kutalik, Z, Laakso, M, Laurie, CC, Leander, K, Lehtimaki, T, Study, LC, Magnusson, PKE, Oldehinkel, AJ, Penninx, B, Poiasek, O, Porteous, DJ, Rauramaa, R, Samani, NJ, Scott, J, Shu, XO, van der Harst, P, Wagenknecht, LE, Wareham, NJ, Watkins, H, Weir, DR, Wickremasinghe, AR, Wu, TC, Zheng, W, Bouchard, C, Christensen, K, Evans, MK, Gudnason, V, Horta, BL, Kardia, SLR, Liu, YM, Pereira, AC, Psaty, BM, Ridker, PM, van Dam, RM, Gauderman, WJ, Zhu, XF, Mook, Dennis, Fornage, M, Rotimi, CN, Cupples, LA, Kelly, TN, Fox, ER, Hayward, C, Duijn, Cornelia, Tai, ES, Wong, TY, Kooperberg, C, Palmas, W, Rice, K, Morrison, AC, Elliott, P, Caulfield, MJ, Munroe, PB, Rao, DC, Province, MA, and Levy, D

Published
2018

3. Correlated d(0) ferromagnetism and photoluminescence in undoped ZnO nanowires

Author

Xing, Guozhong, Wang, Dandan, Yi, Jiabao, Yang, Li-Li, Gao, Ming, He, Mi, Yang, Jinghai, Ding, Jun, Chien Sum, Tze, Wu, Tom, Xing, Guozhong, Wang, Dandan, Yi, Jiabao, Yang, Li-Li, Gao, Ming, He, Mi, Yang, Jinghai, Ding, Jun, Chien Sum, Tze, and Wu, Tom

Abstract

We report the correlated d(0) ferromagnetism and photoluminescence in undoped single-crystalline ZnO nanowires synthesized by using a vapor transport method. We systematically tune the oxygen deficiency in the ZnO nanowires from 4% to 20% by adjusting the growth conditions, i.e., selecting different catalyst (Au or Ag) and varying the growth temperature. Our study suggests that oxygen vacancies induce characteristic photoluminescence and significantly boost the room-temperature ferromagnetism. Such undoped ZnO nanowires with tunable magnetic and optical properties are promising to find applications in multifunctional spintronic and photonic nanodevices., Original Publication:Guozhong Xing, Dandan Wang, Jiabao Yi, Li-Li Yang, Ming Gao, Mi He, Jinghai Yang, Jun Ding, Tze Chien Sum and Tom Wu, Correlated d(0) ferromagnetism and photoluminescence in undoped ZnO nanowires, 2010, APPLIED PHYSICS LETTERS, (96), 11, 112511.http://dx.doi.org/10.1063/1.3340930Copyright: American Institute of Physicshttp://www.aip.org

Published
2010
Full Text
View/download PDF

4. Correlated d(0) ferromagnetism and photoluminescence in undoped ZnO nanowires

Author

Xing, Guozhong, Wang, Dandan, Yi, Jiabao, Yang, Li-Li, Gao, Ming, He, Mi, Yang, Jinghai, Ding, Jun, Chien Sum, Tze, Wu, Tom, Xing, Guozhong, Wang, Dandan, Yi, Jiabao, Yang, Li-Li, Gao, Ming, He, Mi, Yang, Jinghai, Ding, Jun, Chien Sum, Tze, and Wu, Tom

Abstract

We report the correlated d(0) ferromagnetism and photoluminescence in undoped single-crystalline ZnO nanowires synthesized by using a vapor transport method. We systematically tune the oxygen deficiency in the ZnO nanowires from 4% to 20% by adjusting the growth conditions, i.e., selecting different catalyst (Au or Ag) and varying the growth temperature. Our study suggests that oxygen vacancies induce characteristic photoluminescence and significantly boost the room-temperature ferromagnetism. Such undoped ZnO nanowires with tunable magnetic and optical properties are promising to find applications in multifunctional spintronic and photonic nanodevices., Original Publication:Guozhong Xing, Dandan Wang, Jiabao Yi, Li-Li Yang, Ming Gao, Mi He, Jinghai Yang, Jun Ding, Tze Chien Sum and Tom Wu, Correlated d(0) ferromagnetism and photoluminescence in undoped ZnO nanowires, 2010, APPLIED PHYSICS LETTERS, (96), 11, 112511.http://dx.doi.org/10.1063/1.3340930Copyright: American Institute of Physicshttp://www.aip.org

Published
2010
Full Text
View/download PDF

5. Correlated d(0) ferromagnetism and photoluminescence in undoped ZnO nanowires

Author

Xing, Guozhong, Wang, Dandan, Yi, Jiabao, Yang, Li-Li, Gao, Ming, He, Mi, Yang, Jinghai, Ding, Jun, Chien Sum, Tze, Wu, Tom, Xing, Guozhong, Wang, Dandan, Yi, Jiabao, Yang, Li-Li, Gao, Ming, He, Mi, Yang, Jinghai, Ding, Jun, Chien Sum, Tze, and Wu, Tom

Abstract

We report the correlated d(0) ferromagnetism and photoluminescence in undoped single-crystalline ZnO nanowires synthesized by using a vapor transport method. We systematically tune the oxygen deficiency in the ZnO nanowires from 4% to 20% by adjusting the growth conditions, i.e., selecting different catalyst (Au or Ag) and varying the growth temperature. Our study suggests that oxygen vacancies induce characteristic photoluminescence and significantly boost the room-temperature ferromagnetism. Such undoped ZnO nanowires with tunable magnetic and optical properties are promising to find applications in multifunctional spintronic and photonic nanodevices., Original Publication:Guozhong Xing, Dandan Wang, Jiabao Yi, Li-Li Yang, Ming Gao, Mi He, Jinghai Yang, Jun Ding, Tze Chien Sum and Tom Wu, Correlated d(0) ferromagnetism and photoluminescence in undoped ZnO nanowires, 2010, APPLIED PHYSICS LETTERS, (96), 11, 112511.http://dx.doi.org/10.1063/1.3340930Copyright: American Institute of Physicshttp://www.aip.org

Published
2010
Full Text
View/download PDF

6. Correlated d(0) ferromagnetism and photoluminescence in undoped ZnO nanowires

Author

Xing, Guozhong, Wang, Dandan, Yi, Jiabao, Yang, Li-Li, Gao, Ming, He, Mi, Yang, Jinghai, Ding, Jun, Chien Sum, Tze, Wu, Tom, Xing, Guozhong, Wang, Dandan, Yi, Jiabao, Yang, Li-Li, Gao, Ming, He, Mi, Yang, Jinghai, Ding, Jun, Chien Sum, Tze, and Wu, Tom

Abstract

We report the correlated d(0) ferromagnetism and photoluminescence in undoped single-crystalline ZnO nanowires synthesized by using a vapor transport method. We systematically tune the oxygen deficiency in the ZnO nanowires from 4% to 20% by adjusting the growth conditions, i.e., selecting different catalyst (Au or Ag) and varying the growth temperature. Our study suggests that oxygen vacancies induce characteristic photoluminescence and significantly boost the room-temperature ferromagnetism. Such undoped ZnO nanowires with tunable magnetic and optical properties are promising to find applications in multifunctional spintronic and photonic nanodevices., Original Publication:Guozhong Xing, Dandan Wang, Jiabao Yi, Li-Li Yang, Ming Gao, Mi He, Jinghai Yang, Jun Ding, Tze Chien Sum and Tom Wu, Correlated d(0) ferromagnetism and photoluminescence in undoped ZnO nanowires, 2010, APPLIED PHYSICS LETTERS, (96), 11, 112511.http://dx.doi.org/10.1063/1.3340930Copyright: American Institute of Physicshttp://www.aip.org

Published
2010
Full Text
View/download PDF

7. Correlated d(0) ferromagnetism and photoluminescence in undoped ZnO nanowires

Author

Xing, Guozhong, Wang, Dandan, Yi, Jiabao, Yang, Li-Li, Gao, Ming, He, Mi, Yang, Jinghai, Ding, Jun, Chien Sum, Tze, Wu, Tom, Xing, Guozhong, Wang, Dandan, Yi, Jiabao, Yang, Li-Li, Gao, Ming, He, Mi, Yang, Jinghai, Ding, Jun, Chien Sum, Tze, and Wu, Tom

Abstract

We report the correlated d(0) ferromagnetism and photoluminescence in undoped single-crystalline ZnO nanowires synthesized by using a vapor transport method. We systematically tune the oxygen deficiency in the ZnO nanowires from 4% to 20% by adjusting the growth conditions, i.e., selecting different catalyst (Au or Ag) and varying the growth temperature. Our study suggests that oxygen vacancies induce characteristic photoluminescence and significantly boost the room-temperature ferromagnetism. Such undoped ZnO nanowires with tunable magnetic and optical properties are promising to find applications in multifunctional spintronic and photonic nanodevices., Original Publication:Guozhong Xing, Dandan Wang, Jiabao Yi, Li-Li Yang, Ming Gao, Mi He, Jinghai Yang, Jun Ding, Tze Chien Sum and Tom Wu, Correlated d(0) ferromagnetism and photoluminescence in undoped ZnO nanowires, 2010, APPLIED PHYSICS LETTERS, (96), 11, 112511.http://dx.doi.org/10.1063/1.3340930Copyright: American Institute of Physicshttp://www.aip.org

Published
2010
Full Text
View/download PDF

8. Effect of Zn doping on magnetic order and superconductivity in LaFeAsO

Author

Li, Yuke, Lin, Xiao, Tao, Qian, Wang, Cao, Zhou, Tong, Li, Linjun, Wang, Qingbo, He, Mi, Cao, Guanghan, Xu, Zhu-An, Li, Yuke, Lin, Xiao, Tao, Qian, Wang, Cao, Zhou, Tong, Li, Linjun, Wang, Qingbo, He, Mi, Cao, Guanghan, and Xu, Zhu-An

Abstract

We report Zn-doping effect in the parent and F-doped LaFeAsO oxy-arsenides. Slight Zn doping in LaFe1−xZnxAsO drastically suppresses the resistivity anomaly around 150K associated with the antiferromagnetic (AFM) spin density wave (SDW) in the parent compound. The measurements of magnetic susceptibility and thermopower confirm further the effect of Zn doping on AFM order. Meanwhile Zn doping does not affect or even enhances the Tc of LaFe1−xZnxAsO0.9F0.1, in contrast to the effect of Zn doping in high-Tc cuprates. We found that the solubility of Zn content (x) is limited to less than 0.1 in both systems and further Zn doping (i.e. x > 0.1) causes phase separation. Our study clearly indicates that the non-magnetic impurity of Zn2+ ions doped in the Fe2As2 layers affects selectively the AFM order and superconductivity remains robust against the Zn doping in the F-doped superconductors.

Published
2009

9. Effect of Zn doping on magnetic order and superconductivity in LaFeAsO

Author

Li, Yuke, Lin, Xiao, Tao, Qian, Wang, Cao, Zhou, Tong, Li, Linjun, Wang, Qingbo, He, Mi, Cao, Guanghan, Xu, Zhu-An, Li, Yuke, Lin, Xiao, Tao, Qian, Wang, Cao, Zhou, Tong, Li, Linjun, Wang, Qingbo, He, Mi, Cao, Guanghan, and Xu, Zhu-An

Abstract

We report Zn-doping effect in the parent and F-doped LaFeAsO oxy-arsenides. Slight Zn doping in LaFe1−xZnxAsO drastically suppresses the resistivity anomaly around 150K associated with the antiferromagnetic (AFM) spin density wave (SDW) in the parent compound. The measurements of magnetic susceptibility and thermopower confirm further the effect of Zn doping on AFM order. Meanwhile Zn doping does not affect or even enhances the Tc of LaFe1−xZnxAsO0.9F0.1, in contrast to the effect of Zn doping in high-Tc cuprates. We found that the solubility of Zn content (x) is limited to less than 0.1 in both systems and further Zn doping (i.e. x > 0.1) causes phase separation. Our study clearly indicates that the non-magnetic impurity of Zn2+ ions doped in the Fe2As2 layers affects selectively the AFM order and superconductivity remains robust against the Zn doping in the F-doped superconductors.

Published
2009

10. Effect of Zn doping on magnetic order and superconductivity in LaFeAsO

Author

Li, Yuke, Lin, Xiao, Tao, Qian, Wang, Cao, Zhou, Tong, Li, Linjun, Wang, Qingbo, He, Mi, Cao, Guanghan, Xu, Zhu-An, Li, Yuke, Lin, Xiao, Tao, Qian, Wang, Cao, Zhou, Tong, Li, Linjun, Wang, Qingbo, He, Mi, Cao, Guanghan, and Xu, Zhu-An

Abstract

We report Zn-doping effect in the parent and F-doped LaFeAsO oxy-arsenides. Slight Zn doping in LaFe1−xZnxAsO drastically suppresses the resistivity anomaly around 150K associated with the antiferromagnetic (AFM) spin density wave (SDW) in the parent compound. The measurements of magnetic susceptibility and thermopower confirm further the effect of Zn doping on AFM order. Meanwhile Zn doping does not affect or even enhances the Tc of LaFe1−xZnxAsO0.9F0.1, in contrast to the effect of Zn doping in high-Tc cuprates. We found that the solubility of Zn content (x) is limited to less than 0.1 in both systems and further Zn doping (i.e. x > 0.1) causes phase separation. Our study clearly indicates that the non-magnetic impurity of Zn2+ ions doped in the Fe2As2 layers affects selectively the AFM order and superconductivity remains robust against the Zn doping in the F-doped superconductors.

Published
2009

11. Effect of Zn doping on magnetic order and superconductivity in LaFeAsO

Author

Li, Yuke, Lin, Xiao, Tao, Qian, Wang, Cao, Zhou, Tong, Li, Linjun, Wang, Qingbo, He, Mi, Cao, Guanghan, Xu, Zhu-An, Li, Yuke, Lin, Xiao, Tao, Qian, Wang, Cao, Zhou, Tong, Li, Linjun, Wang, Qingbo, He, Mi, Cao, Guanghan, and Xu, Zhu-An

Abstract

We report Zn-doping effect in the parent and F-doped LaFeAsO oxy-arsenides. Slight Zn doping in LaFe1−xZnxAsO drastically suppresses the resistivity anomaly around 150K associated with the antiferromagnetic (AFM) spin density wave (SDW) in the parent compound. The measurements of magnetic susceptibility and thermopower confirm further the effect of Zn doping on AFM order. Meanwhile Zn doping does not affect or even enhances the Tc of LaFe1−xZnxAsO0.9F0.1, in contrast to the effect of Zn doping in high-Tc cuprates. We found that the solubility of Zn content (x) is limited to less than 0.1 in both systems and further Zn doping (i.e. x > 0.1) causes phase separation. Our study clearly indicates that the non-magnetic impurity of Zn2+ ions doped in the Fe2As2 layers affects selectively the AFM order and superconductivity remains robust against the Zn doping in the F-doped superconductors.

Published
2009

Catalog

Books, media, physical & digital resources
See catalog results