(Lu0.8Ce0.2)2Fe17 single crystal under hydrostatic and 'negative' pressure induced by hydrogenation

E. A. Tereshina, A. V. Andreev, J. Kamarád, O. Isnard, K. Watanabe

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5 Citations (Scopus)

Abstract

An experimental study of correlations between the magnetovolume effects and the type of magnetic ordering in the Lu2Fe17-based intermetallics is 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 (Lu0.8Ce 0.2)2Fe17 and a hydride (Lu 0.8Ce0.2)2Fe17H0.4 single-crystalline compounds. The magnetization study was carried out under hydrostatic pressures of up to ∼ 0.8GPa. Hydrogenation is found to totally suppress the antiferromagnetic order of (Lu0.8Ce0.2) 2Fe17 by favoring domination of the ferromagnetic interactions which increases the magnetic ordering temperature from 247 to 300K. The application of pressure decreases the Curie temperature and induces the non-collinearity of the magnetic moments in (Lu0.8Ce 0.2)2Fe17H0.4, confirming the strong influence of hydrogenation on exchange coupling.

Original languageEnglish
Article number216004
JournalJournal of Physics Condensed Matter
Volume23
Issue number21
DOIs
Publication statusPublished - 2011 Jun 1

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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