Study of superconducting fluctuation using Y Ba2Cu3O7 single crystals

Kouichi Semba, Takao Ishii, Azusa Matsuda

研究成果: Article

11 引用 (Scopus)

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In normal-state magnetoresistance studies, the layered structure and short coherence length of high-Tc superconductors make it possible to observe the Zeeman effect on superconducting fluctuation. Two problems, however, remain: (1) the Zeeman effect on the Maki-Thompson fluctuation (MTZ) in the Aronov-Hikami-Larkin (AHL) theory, and (2) whether the the clean or dirty limit approximation is valid. We have therefore studied the magnettoresistance of Y Ba2Cu3O7 bulk single crystals. We experimentally demonstrate that the MTZ fluctuation as presented in the AHL theory are absent. Moreover, we find that clean limit analysis without the MTZ component (ALO+MTO+ALZ) closely fits the experimental data. We obtained results quantitatively consistent with the results of recent optical and transport studies using Y Ba2Cu3O7 single crystals.

元の言語English
ページ(範囲)1303-1304
ページ数2
ジャーナルPhysica C: Superconductivity and its applications
185-189
発行部数PART 2
DOI
出版物ステータスPublished - 1991 12 1
外部発表Yes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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