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Surface-termination-dependent magnetism and strong perpendicular magnetocrystalline anisotropy of an FeRh(001) thin film
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SYSNO ASEP 0452103 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Surface-termination-dependent magnetism and strong perpendicular magnetocrystalline anisotropy of an FeRh(001) thin film Author(s) Jekal, S. (KR)
Rhim, S.H. (KR)
Hong, S.C. (KR)
Son, W.-J. (KR)
Shick, Alexander (FZU-D) RID, ORCIDSource Title Physical Review. B - ISSN 1098-0121
Roč. 92, č. 6 (2015), " 064410-1"-" 064410-6"Number of pages 6 s. Language eng - English Country US - United States Keywords magnetic anisotropy ; magnetic recording ; surface science Subject RIV BM - Solid Matter Physics ; Magnetism R&D Projects GA15-07172S GA ČR - Czech Science Foundation (CSF) Institutional support FZU-D - RVO:68378271 UT WOS 000359046500007 EID SCOPUS 84939838923 DOI 10.1103/PhysRevB.92.064410 Annotation The magnetism of FeRh (001) films strongly depends on film thickness and surface terminations. While the magnetic ground state of bulk FeRh is G-type antiferromagnetism, the Rh-terminated films exhibit ferromagnetism with strong perpendicular magnetocrystalline anisotropy whose energy +2.1 meV/square is two orders of magnitude greater than bulk 3d conventional magnetic metals (square is the area of a two-dimensional unit cell). While the Goodenough-Kanamori-Anderson rule on the superexchange interaction is crucial in determining the magnetic ground phases of FeRh bulk and thin films, the magnetic phases are the results of interplay and competition between three mechanisms—the superexchange interaction, the Zener-type direct interaction, and energy gain by Rh magnetization. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2016
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