Giant enhancement of the thermal Hall conductivity κxy in the superconductor YBa2Cu3O7

被引：64

作者：

Zhang, Y ^{[1
]}

Ong, NP

Anderson, PW

Boon, DA

Liang, R

Hardy, WN

机构：

[1] Princeton Univ, Joseph Henry Labs Phys, Princeton, NJ 08544 USA

[2] Univ British Columbia, Dept Phys, Vancouver, BC, Canada

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 05期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.86.890

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In high-purity YBa2Cu3O7. the (weak-field) thermal Hall conductivity kappa (xy). is observed to increase a thousand-fold between 90 and 30 K. The inferred quasiparticle lifetime tau increases a hundred-fold starting below 90 K, in disagreement with a recent photoemission experiment. We show that kappa (xy). exhibits a specific scaling behavior below similar to 30 K. This scaling may bear on the issue of whether Landau quantization of the quasiparticle states occurs.

引用

页码：890 / 893

页数：4

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