Spontaneous strain in Ba0.6K0.4BiO3

H. Fujishita, T. Yamada, S. Nakada, H. Okamoto, S. Shitara, M. Kato, Y. Koike

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1 Citation (Scopus)


The lattice parameter of Ba0.6K0.4BiO3, which is a well-studied conventional superconductor, was measured by the X-ray Rietveld method between 10 K and room temperature. A very small change in the lattice parameter could be detected in the superconducting phase. The change could be attributed to a spontaneous strain generated in the superconducting phase by the coupling between a superconducting order parameter and the strain. It was concluded that this coupling phenomenon is common to all superconductors.

Original languageEnglish
Pages (from-to)S770-S771
JournalPhysica C: Superconductivity and its Applications
Issue numberSUPPL.1
Publication statusPublished - 2010 Dec


  • Crystal structure and symmetry
  • Phase transitions
  • Superconductors


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