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

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

doi:10.1143/JPSJ.72.2604

Intermediate valence state of La_0.9Eu_0.1Ni ₂(Si_1-xGe_x)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 _0.9Eu_0.1Ni₂(Si_1-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(Si_1-yGe_y)₂ compounds. The main factor in determining the Eu valence in both dilute and concentrated alloys is discussed.

Original language	English
Pages (from-to)	2604-2607
Number of pages	4
Journal	journal of the physical society of japan
Volume	72
Issue number	10
DOIs	https://doi.org/10.1143/JPSJ.72.2604
Publication status	Published - Oct 1 2003
Externally published	Yes

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All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

Cite this

Wada, H., Mitsuda, A., Yoshida, T., Yamamoto, T., & Tanaka, T. (2003). Intermediate valence state of La_0.9Eu_0.1Ni ₂(Si_1-xGe_x)₂ compounds. journal of the physical society of japan, 72(10), 2604-2607. https://doi.org/10.1143/JPSJ.72.2604

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T1 - Intermediate valence state of La0.9Eu0.1Ni 2(Si1-xGex)2 compounds

AU - Wada, Hirofumi

AU - Mitsuda, Akihiro

AU - Yoshida, Tomoko

AU - Yamamoto, Takashi

AU - Tanaka, Tsunehiro

PY - 2003/10/1

Y1 - 2003/10/1

N2 - 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.

AB - 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.

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10.1143/JPSJ.72.2604