Magnetostriction of a U.sub.2./sub.Fe.sub.13./sub.Si.sub.4./sub. single crystal

0342612 - FZÚ 2011 RIV NL eng J - Journal Article
Andreev, Alexander V. - Tereshina, Evgeniya - Prokleška, J.
Magnetostriction of a U₂Fe₁₃Si₄ single crystal.
Journal of Alloys and Compounds. Roč. 491, 1-2 (2010), s. 4-7. ISSN 0925-8388. E-ISSN 1873-4669
R&D Projects: GA ČR GA202/09/0339
Institutional research plan: CEZ:AV0Z10100520
Keywords : uranium intermetallics * single crystals * ferromagnetism * magnetostriction
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 2.138, year: 2010

he longitudinal and transverse magnetostriction was measured on a single crystal of U2Fe13Si4 by a capacitor microdilatometer. Anisotropic magnetostriction constants of U2Fe13Si4 are found to be in the range (70-210)x10-6 at 4.2 K that is high enough to be attributed to the U sublattice. A volume effect observed at the FOMP transition may indicate a field-induced non-collinearity, which involves the exchange magnetostriction to the process in addition to the anisotropic one. The high exchange magnetostriction of U2Fe13Si4 manifests itself in large volume-magnetostriction susceptibility above the technical saturation.
Permanent Link: http://hdl.handle.net/11104/0185303