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

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

doi:10.1016/j.ssc.2010.01.040

X-ray diffraction study of spontaneous strain in superconducting Ba_0.6 K_0.4 BiO₃

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

ENG - Applied Physics

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

The lattice parameter of Ba_0.6 K_0.4 BiO₃, 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 Y Ba₂ Cu₃ O_6.5 and MgB₂ were analyzed, and the present results were compared with our previously obtained results on La_1.85 Sr_0.15 CuO₄. It was concluded that this coupling phenomenon is common to all superconductors.

Original language	English
Pages (from-to)	711-714
Number of pages	4
Journal	Solid State Communications
Volume	150
Issue number	15-16
DOIs	https://doi.org/10.1016/j.ssc.2010.01.040
Publication status	Published - 2010 Apr

Keywords

A. Superconductors
C. Crystal structure and symmetry
D. Phase transitions

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10.1016/j.ssc.2010.01.040

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

abstract = "The lattice parameter of Ba0.6 K0.4 BiO3, 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 Y Ba2 Cu3 O6.5 and MgB2 were analyzed, and the present results were compared with our previously obtained results on La1.85 Sr0.15 CuO4. It was concluded that this coupling phenomenon is common to all superconductors.",

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author = "H. Fujishita and T. Yamada and S. Nakada and H. Okamoto and S. Shitara and M. Kato and Y. Koike",

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T1 - X-ray diffraction study of spontaneous strain in superconducting Ba0.6 K0.4 BiO3

AU - Fujishita, H.

AU - Yamada, T.

AU - Nakada, S.

AU - Okamoto, H.

AU - Shitara, S.

AU - Kato, M.

AU - Koike, Y.

PY - 2010/4

Y1 - 2010/4

N2 - The lattice parameter of Ba0.6 K0.4 BiO3, 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 Y Ba2 Cu3 O6.5 and MgB2 were analyzed, and the present results were compared with our previously obtained results on La1.85 Sr0.15 CuO4. It was concluded that this coupling phenomenon is common to all superconductors.

AB - The lattice parameter of Ba0.6 K0.4 BiO3, 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 Y Ba2 Cu3 O6.5 and MgB2 were analyzed, and the present results were compared with our previously obtained results on La1.85 Sr0.15 CuO4. It was concluded that this coupling phenomenon is common to all superconductors.

KW - A. Superconductors

KW - C. Crystal structure and symmetry

KW - D. Phase transitions

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DO - 10.1016/j.ssc.2010.01.040

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JO - Solid State Communications

JF - Solid State Communications

IS - 15-16

ER -

X-ray diffraction study of spontaneous strain in superconducting Ba_0.6 K_0.4 BiO₃

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