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..
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  axis as the easy-magnetization direction, the  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