Thermal expansion and electrical resistivity of EuNi2(Si1-xGex)2

Hirofumi Wada, Tomonori Sakata, Akihiro Nakamura, Akihiro Mitsuda, Masayuki Shiga, Yasunori Ikeda, Yoshichika Bando

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19 Citations (Scopus)


The thermal expansion and temperature dependence of electrical resistivity were measured for EuNi2(Si1-xGex)2, which shows a valence transition against temperature in 0.5≤x≤0.82. A first-order phase transition was observed in the temperature dependence of the lattice parameters of x = 0.79 and 0.82, while the lattice parameters vary continuously with temperature for x≤0.70. The temperature dependence of electrical resistivity shows a peak at the valence transition temperature. The origin of the peak is discussed on the basis of the dynamic alloy model.

Original languageEnglish
Pages (from-to)950-953
Number of pages4
JournalJournal of the Physical Society of Japan
Issue number3
Publication statusPublished - Jan 1 1999
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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