X-ray diffraction study of spontaneous strain in superconducting Ba0.6K0.4BiO3

Fujishita H; Yamada T; Nakada SOkamoto HShitara SKato MKoike Y

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X-ray diffraction study of spontaneous strain in superconducting Ba0.6K0.4BiO3

机译：X-ray diffraction study of spontaneous strain in superconducting Ba0.6K0.4BiO3

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摘要

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. Previously published data on YBa2Cu3O6.5 and MgB2 were analyzed, and the present results were compared with our previously obtained results on La1.85Sr0.15CuO4. It was concluded that this coupling phenomenon is common to all superconductors.

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《Solid State Communications》 |2010年第16期|711-714|共4页
作者
Fujishita H; Yamada T; Nakada SOkamoto HShitara SKato MKoike Y;
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作者单位

Kanazawa Univ, Sch Math & Phys, Kanazawa, Ishikawa 9201192, Japan.;

Kanazawa Univ, Div Math & Phys Sci, Kanazawa, Ishikawa 9201192, Japan.;

Kanazawa Univ, Sch Hlth Sci, Kanazawa, Ishikawa 9200942, Japan.Tohoku Univ, Dept Appl Phys, Sendai, Miyagi 9808579, Japan.;

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正文语种英语
中图分类固体物理学;
关键词
Superconductors; Crystal structure and symmetry; Phase transitions;

X-ray diffraction study of spontaneous strain in superconducting Ba0.6K0.4BiO3

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