Infrared Hall effect in high-Tc superconductors:: Evidence for non-Fermi-liquid Hall scattering

被引：31

作者：

Cerne, J

Grayson, M

Schmadel, DC

Jenkins, GS

Drew, HD

Hughes, R

Dabkowski, A

Preston, JS

Kung, PJ

机构：

[1] Univ Maryland, Ctr Superconduct Res, College Pk, MD 20741 USA

[2] Univ Maryland, Dept Phys, College Pk, MD 20741 USA

[3] McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada

[4] Adv Fuel Res Inc, E Hartford, CT 06108 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 15期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.84.3418

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Infrared (20-120 and 900-1100 cm(-1)) Faraday rotation and circular dichroism are measured in high-T-c superconductors using sensitive polarization modulation techniques. Optimally doped YBa2Cu3O7 thin films are studied at temperatures in the range (15 < T < 300 K) and magnetic fields up to 8 T, At 1000 cm(-1) the Hall conductivity sigma(xy) varies strongly with temperature in contrast to the longitudinal conductivity sigma(xx) which is nearly independent of temperature. The Hall scattering rate gamma(H) has a T-2 temperature dependence but, unlike a Fermi liquid, depends only weakly on frequency. The experiment: puts severe constraints on theories of transport in the normal state of high-T-c superconductors.

引用

页码：3418 / 3421

页数：4

共 29 条

[1]

Anderson P. W., 1997, THEORY SUPERCONDUCTI

[2] HALL-EFFECT IN THE 2-DIMENSIONAL LUTTINGER LIQUID [J].