New binary refractory metal-Fe intermetallic compounds for hard magnet applications

0522386 - FZÚ 2020 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Tchaplianka, Maxim - Shick, Alexander
New binary refractory metal-Fe intermetallic compounds for hard magnet applications.
Proceedings of the Annual Student Conference Week of Doctoral Students /28./. Prague: MATFYZPRESS, 2019 - (Šafránková, J.; Pavlů, J.), s. 36-38. ISBN 978-80-7378-409-6.
[WDS'2019 - Annual Student Conference Week of Doctoral Students /28./. Prague (CZ), 06.06.2019-09.06.2019]
Grant CEP: GA MŠMT(CZ) EF16_019/0000760; GA ČR GA18-06240S
Grant ostatní: OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institucionální podpora: RVO:68378271
Klíčová slova: electronic structure * magnetic anisotropy * permanent magnets
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
https://www.mff.cuni.cz/veda/konference/wds/proc/proc-contents.php?year=2019

We investigate theoretically the electronic and magnetic structure of Fe2Hf. The density functional theory is used to calculate the magnetic moments on individual atoms, the total and projected densities of states, and the magnetic anisotropy energy. The Fe2Hf is found to be metallic and ferrimagnetic, with the magnetic moments of Fe and Hf atoms pointing in the opposite directions. The negative magnetic anisotropy, and the “in-plane” preferential direction of the magnetization are found as a result of theoretical calculations. Our study suggests that the chemical control of the magnetic anisotropy has to be investigated in order to evaluate the potential of Fe2Hf for the permanent magnet applications.

Trvalý link: http://hdl.handle.net/11104/0306887