Počet záznamů: 1

Sublattice contributions to the magnetism of UFe.sub.5./sub.Al.sub.7./sub. and UFe.sub.6./sub.Al.sub.6./sub..

  1. 1.
    0342562 - FZU-D 2011 RIV NL eng J - Článek v odborném periodiku
    Andreev, Alexander V. - Tereshina, Evgeniya - Šantavá, Eva - Šebek, Josef - Koyama, K. - Watanabe, K.
    Sublattice contributions to the magnetism of UFe5Al7 and UFe6Al6.
    Journal of Alloys and Compounds. Roč. 492, 1-2 (2010), s. 52-55 ISSN 0925-8388
    Grant CEP: GA ČR GA202/09/0339
    Výzkumný záměr: CEZ:AV0Z10100520
    Klíčová slova: uranium intermetallics * ThMn12-type structure * ferromagnetism * magnetic anisotropy
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Impakt faktor: 2.138, rok: 2010

    Magnetization study of intermetallic compounds UFe5Al7 and UFe6Al6 with the tetragonal crystal structure is performed on single crystals. The compounds are ferromagnets with Curie temperatures of 275 K and 315 K, respectively, and possess large magnetocrystalline anisotropy of the easy-plane type with the anisotropy field exceeding 20 T. In both UFe5Al7 and UFe6Al6, a noticeable anisotropy within the basal plane is observed with the [110] axis as the easy-magnetization direction, the [100] curve saturates in fields above 1 T. The in-plane anisotropy is the evidence for the U magnetism because it was not observed in Lu analogue. The large anisotropy persists in the paramagnetic state as well, again due to the U sublattice because it is absent in LuFe6Al6. Magnetic moments of the U and Fe atoms are estimated as 1.8 μB and 1.3 μB, respectively.
    Trvalý link: http://hdl.handle.net/11104/0185267