Study of superconducting fluctuation using Y Ba2Cu3O7 single crystals

Kouichi Semba; Takao Ishii; Azusa Matsuda

doi:10.1016/0921-4534(91)91875-5

Study of superconducting fluctuation using Y Ba₂Cu₃O₇ single crystals

Kouichi Semba, Takao Ishii, Azusa Matsuda

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

3 Citations (Scopus)

Abstract

In normal-state magnetoresistance studies, the layered structure and short coherence length of high-T_c 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.

Original language	English
Pages (from-to)	1303-1304
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	185-189
Issue number	PART 2
DOIs	https://doi.org/10.1016/0921-4534(91)91875-5
Publication status	Published - 1991 Dec 1
Externally published	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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10.1016/0921-4534(91)91875-5

Cite this

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title = "Study of superconducting fluctuation using Y Ba2Cu3O7 single crystals",

abstract = "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.",

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T1 - Study of superconducting fluctuation using Y Ba2Cu3O7 single crystals

AU - Semba, Kouichi

AU - Ishii, Takao

AU - Matsuda, Azusa

PY - 1991/12/1

Y1 - 1991/12/1

N2 - 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.

AB - 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.

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JO - Physica C: Superconductivity and its Applications

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ER -

Study of superconducting fluctuation using Y Ba₂Cu₃O₇ single crystals

Abstract

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