(Lu.sub.0.8./sub.Ce.sub.0.2./sub.).sub.2./sub.Fe.sub.17./sub. single crystal under hydrostatic and ‘negative’ pressure induced by hydrogenation

0361452 - FZÚ 2012 RIV GB eng J - Journal Article
Tereshina, Evgeniya - Andreev, Alexander V. - Kamarád, Jiří - Isnard, O. - Watanabe, K.
(Lu_0.8Ce_0.2)₂Fe₁₇ single crystal under hydrostatic and ‘negative’ pressure induced by hydrogenation.
Journal of Physics-Condensed Matter. Roč. 23, č. 21 (2011), s. 1-9. ISSN 0953-8984. E-ISSN 1361-648X
R&D Projects: GA ČR GA202/09/0339
Institutional research plan: CEZ:AV0Z10100520
Keywords : hydrogenation * single-crystalline compounds
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 2.546, year: 2011

Correlations between the magnetovolume effects and the type of magnetic ordering in the Lu2Fe17-based intermetallics are shown for the example of variation of the interatomic distances by means of substitution of Ce for Lu, hydrogenation and subsequent high-pressure investigation of both the initial (Lu0.8Ce0.2)2Fe17 and a hydride (Lu0.8Ce0.2)2Fe17H0.4 single-crystalline compounds. Hydrogenation is found to suppress totally the antiferromagnetic order of (Lu0.8Ce0.2)2Fe17 by favoring domination of the ferromagnetic interactions which increases the magnetic ordering temperature from 247 to 300 K. The application of pressure decreases the Curie temperature and induces the non-collinearity of the magnetic moments in (Lu0.8Ce0.2)2Fe17H0.4.
Permanent Link: http://hdl.handle.net/11104/0198761