THERMAL-CONDUCTIVITY OF AN UNTWINNED YBA2CU3O7-DELTA SINGLE-CRYSTAL AND A NEW INTERPRETATION OF THE SUPERCONDUCTING-STATE THERMAL TRANSPORT

被引：271

作者：

YU, RC ^{[1
]}

SALAMON, MB ^{[1
]}

LU, JP ^{[1
]}

LEE, WC ^{[1
]}

机构：

[1] UNIV ILLINOIS,SCI & TECHNOL CTR SUPERCONDUCT,URBANA,IL 61801

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.69.1431

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured the anisotropic thermal conductivity of an untwinned single crystal of YBa2Cu3O7-delta in the most conducting a-b plane from 14 to 200 K. Unlike previous analyses, ours attributes the observed rapid rise in thermal conductivity in the superconducting state to the electronic contribution of the Cu-O plane. We propose that strong suppression of the quasiparticle scattering rate with decreasing temperature is responsible for the large enhancement of the superconducting-state thermal conductivity.

引用

页码：1431 / 1434

页数：4

共 33 条

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