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Inter-chain Interaction of Metallic 1D-chain in PrBa2Cu4O8

Published online by Cambridge University Press:  18 March 2011

Shigeru Horii ,
H. Takagi ,
H. Ikuta ,
U. Mizutani ,
Y. Yamada ,
I. Hirabayashi ,
J. Shimoyama  and
K. Kishio
Shigeru Horii
Affiliation:
Department of Superconductivity, University of Tokyo, Tokyo 113-8656, Japan
H. Takagi
Affiliation:
Department of Advanced Materials Science, University of Tokyo, Tokyo 113-0033, Japan
H. Ikuta
Affiliation:
Department of Crystalline Materials Science, Nagoya University, Nagoya 464-8603, Japan
U. Mizutani
Affiliation:
Center for Integrated Research in Science and Engineering, Nagoya University, Nagoya 464-8603, Japan
Y. Yamada
Affiliation:
Department of Material Science, Shimane University, Matsue 690-8504, Japan
I. Hirabayashi
Affiliation:
Superconductivity Research Laboratory, ISTEC, Nagoya 456-8587, Japan
J. Shimoyama
Affiliation:
Department of Superconductivity, University of Tokyo, Tokyo 113-8656, Japan
K. Kishio
Affiliation:
Department of Superconductivity, University of Tokyo, Tokyo 113-8656, Japan
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Abstract

The a- and b-axis resistivities and the a-axis magnetoresistivities applying magnetic field (B) along all three crystallographic axes in non-superconductive PrBa2Cu4O8 single crystals have been measured using four-probe method. Resistivitiy along the b-axis (parallel to double-chains) showed a highly conductive behavior, of which the origin is attributed to the double-chains because of a large anisotropic conduction between a- and b-axis directions. However, a metallic behavior along the a-axis was also observed in temperature region below 130 K, which could be understood in terms of presence of finite and coherent inter-chain interaction along the a-axis direction. This conclusion is derived from good agreement with values of mean-free path length in the double chain, lchain estimated from both the ρb-T curve and the a-axis MR applying B//c using quasi-one-dimensional (quasi-1D) band model.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 659: Symposium II – High-Temperature Superconductors-Crystal Chemistry, Processing & Properties , 2000 , II9.15
Copyright
Copyright © Materials Research Society 2001

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References

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