Determination of the Crystal Structure of Superionic Phase of Cu2Se

T. Sakuma; K. Sugiyama; E. Matsubara; Y. Waseda

doi:10.2320/matertrans1989.30.365

Determination of the Crystal Structure of Superionic Phase of Cu₂Se

T. Sakuma, K. Sugiyama, E. Matsubara, Y. Waseda

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Keywords: crystal structure, space group, solid electrolyte, superionic conductor, anomalous X-ray scattering, absorption edge, copper selenide

JOURNAL FREE ACCESS

1989 Volume 30 Issue 5 Pages 365-369

DOI https://doi.org/10.2320/matertrans1989.30.365

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Abstract

The cubic system of the space group denoted by O_h⁵–Fm3m with the lattice constant of a=0.5833±0.0003 nm has been found more feasible for the crystal structure of superionic phase of Cu₂Se (α-Cu₂Se) at 473 K using the usual powder X-ray diffraction method. The present conclusion has also been supported by the anomalous X-ray scattering (AXS) measurement at the Cu and Se K-absorption edges using synchrotron radiation.

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