Intermediate valence state of La0.9Eu0.1Ni 2(Si1-xGex)2 compounds

Hirofumi Wada, Akihiro Mitsuda, Tomoko Yoshida, Takashi Yamamoto, Tsunehiro Tanaka

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Abstract

We examined the temperature dependence of the Eu valence in La 0.9Eu0.1Ni2(Si1-xGe x)2 by means of magnetic susceptibility measurements and X-ray absorption spectroscopy. It was found that the Eu ions are in the intermediate valence state for 0.2 < x < 0.8 and the Eu valence gradually varies with temperature. The results are compared with those of the concentrated EuNi2(Si1-yGey)2 compounds. The main factor in determining the Eu valence in both dilute and concentrated alloys is discussed.

Original languageEnglish
Pages (from-to)2604-2607
Number of pages4
Journaljournal of the physical society of japan
Volume72
Issue number10
DOIs
Publication statusPublished - Oct 1 2003
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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