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3. List of contributors

Author

Alekhina, Iuliia, primary, Amirov, Abdulkarim, additional, Anisimov, Nikolay V., additional, Blanco, Juan Maria, additional, Cabal-Mirabal, Carlos, additional, Chacon-Caldera, Jorge, additional, Charreyron, Samuel L., additional, Choi, Seung-Bok, additional, Corte-Leon, Paula, additional, Cotelli, Maria, additional, Dee, Garret, additional, Duan, Xiaodong, additional, Ferreri, Florinda, additional, Franke, Jochen, additional, Gervits, Lev L., additional, Gulyaev, Mikhail V., additional, Gun’ko, Yurii K., additional, Gurfinkel, Yury I., additional, Hilger, Ingrid, additional, Iodice, Francesco, additional, Ipatov, Mihail, additional, Judica, Elda, additional, Komlev, Aleksei S., additional, Kramarenko, Elena, additional, Kritskiy, Alexander, additional, Lomova, Maria V., additional, Makarova, Liudmila, additional, Maslennikov, Yuri, additional, Meersmann, Thomas, additional, Miraglia, Francesca, additional, Mushnikov, Nikolay V., additional, Naumova, Anna V., additional, Nelson, Bradley J., additional, Nguyen, Nam-Trung, additional, Oh, Jong-Seok, additional, Orlando, Bianca, additional, Pavlova, Olga S., additional, Pavlovskaya, Galina E., additional, Perov, Nikolai, additional, Pirogov, Yury A., additional, Pishchalnikov, Roman Y., additional, Pyatakov, Alexander, additional, Pyatakova, Zoya, additional, Rossini, Paolo Maria, additional, Sadykhov, Elnur, additional, Semenova, Natalia, additional, Singh, Gurjit, additional, Sukhorukov, Gleb B., additional, Tishin, Alexander M., additional, Vecchio, Fabrizio, additional, Volkov, Dmitry V., additional, Zhang, Jun, additional, Zhukov, Arcady, additional, Zhukova, Valentina, additional, and Zverev, Vladimir I., additional

Published
2022
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5. Contributors

Author

Araujo, Flavio Abreu, primary, Araújo, João P., additional, Asenjo, A., additional, Berganza, E., additional, Béron, F., additional, Blanco, Juan Maria, additional, Blon, Thomas, additional, Böhnert, Tim, additional, Bran, C., additional, Braun, Hans-Benjamin, additional, Bunyaev, Sergey, additional, Butta, Mattia, additional, Caballero, Rafael, additional, Caballero-Calero, Olga, additional, Calle, E., additional, da Câmara Santa Clara Gomes, Tristan, additional, Campanelli, R.B., additional, Charilaou, Michalis, additional, Chatzipirpiridis, George, additional, Chaudret, Bruno, additional, Chen, Xiang-Zhong, additional, Chiriac, Horia, additional, Chizhik, A., additional, Chubykalo-Fesenko, O., additional, Corté-Leon, Paula, additional, da Cruz, A.S.E., additional, del Real, Rafael P., additional, Diez, L. Herrera, additional, Downey, Patrick R., additional, Estevez, D., additional, Fecova, L., additional, Fernández-Pacheco, Amalio, additional, Fernandez-Roldan, J.A., additional, Flatau, Alison B., additional, Franklin, Rhonda, additional, Frolova, L., additional, Fruchart, O., additional, Galdun, L., additional, Galik, J., additional, Gamcova, J., additional, García, Javier, additional, Gawroński, P., additional, Gonzalez, J., additional, González, Silvia, additional, Gusakova, D., additional, Hayashi, Masamitsu, additional, Hennel, M., additional, Hudak, R., additional, Hvizdos, L., additional, Hyun, Jerome K., additional, Ibarra, P., additional, Ipatov, Mihail, additional, Ivanov, Yu.P., additional, Jaafar, M., additional, Jang, Bumjin, additional, Jurc, R., additional, Kakazei, Gleb, additional, Klein, P., additional, Kosel, Jürgen, additional, Kozejova, D., additional, de la Torre Medina, Joaquín, additional, Lacroix, Lise-Marie, additional, Löffler, Jörg F., additional, Lupu, Nicoleta, additional, Martínez, Eduardo, additional, Martín-González, Marisol, additional, Méndez, Miguel, additional, Milkovic, O., additional, Moura, K.O., additional, Mudivarthi, Chaitanya, additional, Mudronova, D., additional, Muñoz, Manuel, additional, Navas, David, additional, Nelson, Bradley J., additional, Van Order, Michael, additional, Ott, Frédéric, additional, Óvári, Tibor-Adrian, additional, Pagliuso, P.J.G., additional, Pané, Salvador, additional, Panina, Larissa V., additional, Pardavi-Horvath, Martha, additional, Park, Jung Jin, additional, Pellicer, Eva, additional, Perez, Jose E., additional, Piraux, Luc, additional, Pirota, K.R., additional, Poggio, M., additional, Prida, Victor M., additional, Prieto, José L., additional, Proenca, Mariana P., additional, Puigmartí-Luis, Josep, additional, Qin, F.X., additional, Raposo, Victor, additional, Ravelosona, D., additional, Reddy, Kotha Sai Madhukar, additional, Richter, K., additional, De Riz, A., additional, Ryba, T., additional, Sabol, R., additional, Sanz-Hernández, Dédalo, additional, Sevim, Semih, additional, Sharma, Anirudh, additional, Snoeck, E., additional, Soulantica, Katerina, additional, Sousa, Célia T., additional, Stadler, Bethanie J.H., additional, Stupakiewicz, A., additional, Sulla, I., additional, Sung, Sang-Yeob, additional, Tan, Liwen, additional, Tartakovskaya, Elena V., additional, Thirion, Ch., additional, Torrejon, Jacob, additional, Toussaint, J.-Ch., additional, Trapp, B., additional, Um, Joseph, additional, Varga, R., additional, Vargova, Z., additional, Vázquez, M., additional, Vega, Victor, additional, Ventura, João, additional, Viau, Guillaume, additional, Zhang, Shixiong, additional, Zhang, Yali, additional, Zhou, Wen, additional, Zhukov, Arcady, additional, Zhukova, Valentina, additional, and Zou, Jia, additional

Published
2020
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6. Engineering of domain wall propagation in magnetic microwires with graded magnetic anisotropy

Author

Polímeros y Materiales Avanzados: Física, Química y Tecnología, Física aplicada I, Polimero eta Material Aurreratuak: Fisika, Kimika eta Teknologia, Fisika aplikatua I, Corte León, Paula, Zhukova Zhukova, Valentina, Blanco Aranguren, Juan María, Chizhik, Alexander, Ipatov, Mihail, González Estévez, Julián María, Fert, Albert Louis François, Alonso, A., Zhukov Egorova, Arkady Pavlovich, Polímeros y Materiales Avanzados: Física, Química y Tecnología, Física aplicada I, Polimero eta Material Aurreratuak: Fisika, Kimika eta Teknologia, Fisika aplikatua I, Corte León, Paula, Zhukova Zhukova, Valentina, Blanco Aranguren, Juan María, Chizhik, Alexander, Ipatov, Mihail, González Estévez, Julián María, Fert, Albert Louis François, Alonso, A., and Zhukov Egorova, Arkady Pavlovich

Abstract

[EN] We report on the influence of graded magnetic anisotropy designed by stress-annealing of magnetic microwire at variable annealing temperature on domain wall propagation. We found that the domain wall propagation in a medium with graded magnetic anisotropy is substantially nonuniform. Domain wall can be trapped in the microwire region with strong enough stress-annealing induced magnetic anisotropy. On the other hand, faster domain wall propagation and a decrease in the domain wall length are observed in the region with moderate stress-annealing induced magnetic anisotropy. Beneficial effect of stress annealing on the domain wall dynamics is associated with the induced transverse magnetic anisotropy in the outer domain which affects the travelling domain wall in a similar way as application of transversal bias magnetic field. Observed decreasing of the half-width of the electromagnetic force (EMF) peak in stress-annealed microwires can be associated to the decreasing of the characteristic domain wall length.

Published
2022

7. Anomalous magnetic behavior in half-metallic Heusler Co2FeSi alloy glass-coated microwires with high Curie temperature

Author

Polímeros y Materiales Avanzados: Física, Química y Tecnología, Polimero eta Material Aurreratuak: Fisika, Kimika eta Teknologia, Salaheldeen, Mohamed, García Gómez, Alfonso, Corte León, Paula, Ipatov, Mihail, Zhukova Zhukova, Valentina, González Estévez, Julián María, Zhukov Egorova, Arkady Pavlovich, Polímeros y Materiales Avanzados: Física, Química y Tecnología, Polimero eta Material Aurreratuak: Fisika, Kimika eta Teknologia, Salaheldeen, Mohamed, García Gómez, Alfonso, Corte León, Paula, Ipatov, Mihail, Zhukova Zhukova, Valentina, González Estévez, Julián María, and Zhukov Egorova, Arkady Pavlovich

Abstract

In the current study, we have succeeded to fabricate Co2FeSi Heusler alloy glass-covered microwires with magnetic core nucleus diameter d = 4.36 mu m and total diameter D = 17.55 mu m, with high Curie temperature (T-e > 1100 K) and well-defined magnetic anisotropy for high temperature spintronic devices application. The magnetic properties of as-prepared and annealed at different temperature (873 K, 973 K and 1073 K for 1 h) of Co2FeSi Heusler alloy glass-covered microwires have been investigated. Strong dependence of the magnetic properties on the annealing conditions has been indicated. Anomalous magnetic behavior for annealed samples at 873 K and 973 K has been found and structural properties of such samples have been analyzed. Critical temperatures 155 K and 250 K have been detected for annealed samples at 873 K and 973 K, respectively, where the behavior of M-H loops and coercivity changed. Below the critical point the M -H curve shows "kink or wasp-waisted" magnetic behavior and complex magnetic reversal mechanism is supposed. The anomalous magnetic behavior is due to the martensitic phases induced by annealing con-ditions below the room temperature. This unusual magnetization behavior provides opportunities to un-derstand the phenomena of different types of magnetic domain structures in the preferred crystallographically oriented Co2FeSi Heusler alloy glass-coated micro-wires, essentially helpful for de-signing the devices based on magnetization switching.

Published
2022

8. Magnetic behavior and microstructure of Finemet-type ribbons in both, surface and bulk

Author

Fernández, Laura, Iturriza, Nuria, Ipatov, Mihail, Val, Juan J., Chizhik, A., González, J., Vara, G., Pierna, A. R., Fernández, Laura, Iturriza, Nuria, Ipatov, Mihail, Val, Juan J., Chizhik, A., González, J., Vara, G., and Pierna, A. R.

Abstract

Different kinds of magnetic anisotropies have been induced during the nanocrystallization process of Co- and Ni-rich amorphous ferromagnetic (Finemet) ribbons using diverse procedures like the application of a constant stress or an axial magnetic field during the annealing process. Magnetization measurements have evidenced the anisotropy of the treated samples. The main goal of this work has been the structural and microstructural analysis of the treated ribbons using X-ray Diffraction (XRD) and Atomic Force Microscopy (AFM), detecting substantial differences in the crystallization state and grain size of the samples depending on the treatment that was carried out. Moreover, AFM measurements revealed in all the treated samples a strong nanocrystallization of the surface without evidences of amorphous matrix, which contrast with XRD measurements that have shown a high content of amorphous phase in the bulk of the ribbons. Magneto-optical Kerr effect measurements have been performed with the aim to elucidate the complex magnetic behavior that is expected for the surface of the ribbons, measuring surface hysteresis loops that show much higher coercive field values than in the bulk.

Published
2007

9. Nanostructure and magnetic properties of Ni-substituted finemet ribbons

Author

Iturriza, Nuria, Fernández, Laura, Ipatov, Mihail, Vara, G., Pierna, A. R., Val, Juan J., Chizhik, A., González, J., Iturriza, Nuria, Fernández, Laura, Ipatov, Mihail, Vara, G., Pierna, A. R., Val, Juan J., Chizhik, A., and González, J.

Abstract

Magnetic anisotropy has been induced during the nanocrystallization process of Ni-rich amorphous ferromagnetic (Finemet) ribbons by means of the application of a constant stress during the annealing process. Magnetization measurements have evidenced the anisotropy of the treated samples. The main goal of this work was the analysis of the treated ribbons using X-ray Diffraction (XRD), Transmission Electronic Microscopy (TEM) and Atomic Force Microscopy (AFM). AFM measurements revealed in all the cases a strong nanocrystallisation of the surface without evidences of amorphous matrix, which contrast with XRD and TEM measurements that have shown a high content of amorphous phase in the bulk of the ribbons. Magneto-optical Kerr effect measurements show much higher coercive field values than in the bulk, indicating a complex magnetic behavior for the surface of the ribbons.

Published
2007

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