Role of the interfaces in the crystallization and hysteresis mechanisms of amorphous Fe-B thin films
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Role of the interfaces in the crystallization and hysteresis mechanisms of amorphous Fe-B thin films
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| Автор |
Urdiroz, U.
Palomares, F. J. Mayoral, A. Soldatov, I. V. Schäfer, R. González, J. M. Sanchez-Agudo, M. Navarro, E. Ruiz, A. Alonso, M. Vázquez, L. Cebollada, F. |
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| Тематика |
AMORPHOUS FERROMAGNETS
CRYSTALLIZATION MAGNETIZATION PROCESS MAGNETO-OPTICAL KERR MICROSCOPY THIN FILM TRANSMISSION ELECTRON MICROSCOPY AMORPHOUS FILMS COERCIVE FORCE CRYSTALLITES GLASS HIGH RESOLUTION TRANSMISSION ELECTRON MICROSCOPY HYSTERESIS IRON COMPOUNDS LASER ABLATION MAGNESIA MAGNETIC ANISOTROPY MAGNETISM OXIDE MINERALS PULSED LASER DEPOSITION SUBSTRATES THIN FILMS ANNEALING TEMPERATURES CRYSTALLIZATION MECHANISMS CRYSTALLIZATION ONSET TEMPERATURE CRYSTALLIZATION PROCESS INTERFACIAL CHARACTERISTICS MAGNETO-OPTIC TECHNIQUES PULSED LASER ABLATION DEPOSITIONS UNIAXIAL MAGNETIC ANISOTROPY BORON COMPOUNDS |
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| Описание |
In this work we study the crystallization processes of two sets of amorphous Fe80B20 films fabricated by Pulsed Laser Ablation Deposition on substrates with different nature, Corning glass® and MgO(001). We analyze their magnetic hysteresis mechanisms by means of magneto-optic techniques and Transmission Electron Microscopy. The as-deposited amorphous films present a highly homogeneous uniaxial magnetic anisotropy with the easy axis orientation dependent on the type of substrate and much weaker than that of bulk alloys with similar composition. The onset of crystallization for the films deposited on glass and MgO appears, respectively, at temperatures 150 °C and 250 °C below that of their bulk counterparts. We study the role of the substrate in the crystallization mechanism and the resulting nanostructure of the magnetic films. While the crystallization of the MgO-deposited films proceeds in a broad front growing from the substrate to the surface, that of the glass-deposited films takes place through the nucleation and growth of isolated crystallites. We analyze the evolution of the coercivity during the crystallization of the films. It follows a similar trend for both types, remaining in values close to those of the amorphous precursors until it rises steeply at a given annealing temperature. The threshold of the steep coercivity increase of the glass-deposited films is shifted to lower temperatures with respect to the MgO ones, in spite of the higher crystallization onset temperature of the former. The coercivity mechanisms have been analyzed, correlated to the films interfacial characteristics and compared to those of bulk alloys. © 2021 Elsevier B.V.
Instituto de Nanociencia de Aragon Spanish Research Agency Family Process Institute, FPI, (BES-2014-070387) Deutsche Forschungsgemeinschaft, DFG, (SO 1623/2-1) Consejo Superior de Investigaciones Científicas, CSIC, (2019AEP150) Ministerio de Ciencia e Innovación, MICINN, (RYC2018-024561-I) Universidad de Zaragoza, UZ Agencia Estatal de Investigación, AEI, (MAT2016-80394-R) Funding text 1: We thank the financial support by the Spanish Research Agency (AEI), project MAT2016-80394-R, and Consejo Superior de Investigaciones Científicas (CSIC), Ref. 2019AEP150. U.U. acknowledges FPI grant BES-2014-070387. The microscopy works have been conducted in the “Laboratorio de Microscopias Avanzadas (LMA)” at Instituto de Nanociencia de Aragon (INA) - Universidad de Zaragoza. Authors acknowledge the LMA-INA for offering access to their instruments and expertise. A.M. acknowledges the Spanish Ministry of Science through the Ramon y Cajal program (RYC2018-024561-I). I.S. is grateful to Deutsche Forschungsgemeinschaft for support through project SO 1623/2-1. Funding text 2: We thank the financial support by the Spanish Research Agency ( AEI ), project MAT2016-80394-R , and Consejo Superior de Investigaciones Científicas ( CSIC ), Ref. 2019AEP150 . U.U. acknowledges FPI grant BES-2014-070387 . The microscopy works have been conducted in the “Laboratorio de Microscopias Avanzadas (LMA)” at Instituto de Nanociencia de Aragon (INA) - Universidad de Zaragoza. Authors acknowledge the LMA-INA for offering access to their instruments and expertise. A.M. acknowledges the Spanish Ministry of Science through the Ramon y Cajal program ( RYC2018-024561-I ). I.S. is grateful to Deutsche Forschungsgemeinschaft for support through project SO 1623/2-1 . |
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| Дата |
2024-04-22T15:53:22Z
2024-04-22T15:53:22Z 2021 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) Published version (info:eu-repo/semantics/publishedVersion) |
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| Идентификатор |
Urdiroz, U, Palomares, FJ, Mayoral, A, Soldatov, IV, Schäfer, R, González, JM, Sanchez-Agudo, M, Navarro, E, Ruiz, A, Alonso, M, Vázquez, L & Cebollada, F 2021, 'Role of the interfaces in the crystallization and hysteresis mechanisms of amorphous Fe-B thin films', Journal of Alloys and Compounds, Том. 869, 159276. https://doi.org/10.1016/j.jallcom.2021.159276
Urdiroz, U., Palomares, F. J., Mayoral, A., Soldatov, I. V., Schäfer, R., González, J. M., Sanchez-Agudo, M., Navarro, E., Ruiz, A., Alonso, M., Vázquez, L., & Cebollada, F. (2021). Role of the interfaces in the crystallization and hysteresis mechanisms of amorphous Fe-B thin films. Journal of Alloys and Compounds, 869, [159276]. https://doi.org/10.1016/j.jallcom.2021.159276 0925-8388 Final All Open Access; Green Open Access https://digital.csic.es/bitstream/10261/251287/4/32%20INMArole.pdf https://digital.csic.es/bitstream/10261/251287/4/32%20INMArole.pdf http://elar.urfu.ru/handle/10995/132428 46759538 10.1016/j.jallcom.2021.159276 85101941626 638274800037 |
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| Язык |
en
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by |
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| Формат |
application/pdf
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| Издатель |
Elsevier Ltd
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| Источник |
Journal of Alloys and Compounds
Journal of Alloys and Compounds |
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