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

0534726 - FZÚ 2021 RIV CH eng J - Journal Article
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
R&D Projects: GA ČR GA18-06240S; GA MŠMT(CZ) EF16_019/0000760
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : magnetic anisotropy * permanent magnets
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 2.589, year: 2020
Method of publishing: 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.
Permanent Link: http://hdl.handle.net/11104/0312906