Počet záznamů: 1  

Magnetic properties of HoFe.sub.6./sub.Al.sub.6./sub.H hydride: a single-crystal study

  1. 1.
    0469542 - FZÚ 2017 RIV NL eng J - Článek v odborném periodiku
    Andreev, Alexander V. - Pelevin, I.A. - Šebek, Josef - Tereshina, Evgeniya - Gorbunov, Denis - Drulis, H. - Tereshina, I.S.
    Magnetic properties of HoFe6Al6H hydride: a single-crystal study.
    Journal of Science: Advanced Materials and Devices. Roč. 1, č. 2 (2016), 152-157. ISSN 2468-2284. E-ISSN 2468-2179
    Grant CEP: GA ČR GA16-03593S
    Institucionální podpora: RVO:68378271
    Klíčová slova: rare-earth intermetallics * hydrides * magnetic anisotropy * ferrimagnetism * field-induced transition
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus

    Magnetic properties were studied on single crystal of HoFe6Al6H in comparison with parent compound. HoFe6Al6 is a ferrimagnet with exact compensation of the Ho and Fe magnetizations at low temperatures. Both the hydride and the parent compound display a high magnetic anisotropy of the easy-plane type (tetragonal crystal structure), a big anisotropy exists also within the easy plane, [110] is easy magnetization axis. The hydrogenation increases slightly the magnetic moment of the Fe sublattice as result of volume expansion. It leads to a decompensation of the Fe and Ho sublattices and hydride has a spontaneous moment 0.45 mB/f The enhancement of the Fe-Fe intra-sublattice exchange interaction results in a higher Curie temperature (350 K vs 315 K in parent compound). The Ho-Fe inter-sublattice interaction is also enhanced in the hydride.
    Trvalý link: http://hdl.handle.net/11104/0267324

     
     
Počet záznamů: 1  

  Tyto stránky využívají soubory cookies, které usnadňují jejich prohlížení. Další informace o tom jak používáme cookies.