Large uniaxial magnetic anisotropy of hexagonal Fe-Hf-Sb alloys

0534726 - FZÚ 2021 RIV CH eng J - Článek v odborném periodiku
Kyvala, L. - Tchaplianka, Maxim - Shick, Alexander - Khmelevskyi, S. - Legut, D.
Large uniaxial magnetic anisotropy of hexagonal Fe-Hf-Sb alloys.
Crystals. Roč. 10, č. 6 (2020), s. 1-10, č. článku 430. ISSN 2073-4352. E-ISSN 2073-4352
Grant CEP: GA ČR GA18-06240S; GA MŠMT(CZ) EF16_019/0000760
Grant ostatní: OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institucionální podpora: RVO:68378271
Klíčová slova: magnetic anisotropy * permanent magnets
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 2.589, rok: 2020
Způsob publikování: Open access

We theoretically investigate the electronic and magnetic structure of Fe2Hf. The density functional theory calculations are shown to produce the negative, easy-plane, magnetic anisotropy in the hexagonal Fe2Hf. Antimony substitution suppresses the planar magnetization direction and favors the uniaxial magnetic anisotropy, in agreement with experimental observations. Our study suggests the possibility of the chemical control of the magnetic anisotropy in Fe2Hf by Sb substitution, and illustrates the potential of (Fe,Sb)2+xHf1-xLaves phase alloys for the permanent magnet applications.
Trvalý link: http://hdl.handle.net/11104/0312906