THERMAL TRANSPORT AND SCATTERING MECHANISMS IN BPSCCO HIGH-TC SUPERCONDUCTORS

被引：7

作者：

MATSUKAWA, M

NOTO, K

FUJISHIRO, H

TODATE, T

TATESAKI, F

MORI, K

YAMADA, Y

ISHIHARA, M

机构：

[1] TOYAMA UNIV,COLL LIBERAL ARTS,TOYAMA 930,JAPAN

[2] SUMITOMO HEAVY IND LTD,HIRATSUKA 254,JAPAN

来源：

PHYSICA B | 1994年 / 194卷

关键词：

D O I：

10.1016/0921-4526(94)91608-X

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The thermal conductivity (kappa) for BPSCCO superconductors has been measured between 10 K and 200 K at various stages of the annealing process . Decrease of charge carrier densities due to annealing in vacuum operates as suppressing a clear enhancement of kappa in the vicinity of T(c). The scattering mechanisms in thermal transport have been discussed , applying a relaxation time approximation to phonon transport and Kadanoffs theory to electron transport. The analysis based on the d-wave state reproduces the present experimental result better than that on the s-wave state.

引用

页码：2217 / 2218

页数：2

共 6 条

[1] THEORY OF THE THERMAL CONDUCTIVITY OF SUPERCONDUCTORS [J].