Direct observation of a structural-fluctuation enhancement in a superconducting state of Tl2Ba2Ca2Cu3O10 by electron diffraction

Y. Koyama*, S. I. Nakamura, Y. Inoue, T. Ohno

*この研究の対応する著者

研究成果: Article査読

16 被引用数 (Scopus)

抄録

Features of temperature-dependent diffuse scattering showing a structural fluctuation in Tl2Ba2Ca2Cu3O10 have been investigated in detail in a temperature range between about 20 K and room temperature by means of electron diffraction. As the temperature is lowered, the intensity of diffuse scattering increases remarkably below about 130 K, which is taken to be the onset temperature of superconductivity. Because the scattering is obviously due to a structural fluctuation, Tl2Ba2Ca2Cu3O10 is understood to exhibit an enhancement of the fluctuation in a superconducting state. In addition, a careful analysis of the features in the scattering suggests that a dynamic displacement of an apical O atom in the CuO5 pyramid along the c axis is responsible for the structural fluctuation in the superconducting state.

本文言語English
ページ(範囲)5757-5759
ページ数3
ジャーナルPhysical Review B
46
9
DOI
出版ステータスPublished - 1992

ASJC Scopus subject areas

  • 凝縮系物理学

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