Počet záznamů: 1

Hydrogen as a probe into 5f-magnetism

  1. 1.
    0342552 - FZU-D 2011 RIV DE eng J - Článek v odborném periodiku
    Mašková, S. - Havela, L. - Šantavá, Eva - Miliyanchuk, K.
    Hydrogen as a probe into 5f-magnetism.
    International Journal of Materials Research. Roč. 100, č. 9 (2009), s. 1187-1189 ISSN 1862-5282
    Grant ostatní: GA ČR(CZ) GA202/07/0418; GA MŠk(CZ) OC 146
    Výzkumný záměr: CEZ:AV0Z10100520
    Klíčová slova: uranium compounds * magnetic properties * hydrogen absorption
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Impakt faktor: 0.862, rok: 2009

    We performed magnetic measurements on the hydrogenated system (U, Th)CoSn as part of an investigation of UTX compounds (T - transitional metal, X - p-metal). The U1-xThxCoSn compounds crystallize in the hexagonal structure (ZrNiAl type, space group P (6) over bar 2m). Hydrogen absorption of approximately 1 H/f could be achieved. The hydrogenation does not change the crystal structure. In all cases it leads to a unit-cell expansion by 3.0% to 3.6%. Studies of the temperature dependence of the magnetic susceptibility indicate a certain increase in the Curie temperature T-C in the hydrides, but the Th concentration at which ferromagnetism vanishes remains practically unchanged (U0.2Th0.8CoSn has a paramagnetic ground state).
    Trvalý link: http://hdl.handle.net/11104/0185259