EFFECT OF ZN IMPURITIES ON THE NORMAL-STATE HALL ANGLE IN SINGLE-CRYSTAL YBA2CU3-XZNXO7-DELTA

被引：565

作者：

CHIEN, TR

WANG, ZZ

ONG, NP

机构：

[1] Joseph Henry Laboratories of Physics, Princeton University, Princeton

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.67.2088

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In Zn-doped single-crystal YBa2Cu3-xZn(x)O7-sigma we show that the normal-state Hall angle varies as cot-theta-H = alpha-T2 + beta-x, as predicted by Anderson (T is temperature). The existence of two distinct relaxation time scales (tau-H approximately 1/T2 and tau-tr approximately 1/T), required by experiment, precludes all multiband Drude-type models. A number of puzzling features of the Hall effect in the cuprates are resolved with the new analysis. We also report an improved measurement of the scattering cross section of Zn in the CuO2 planes. PACS numbers: 74.70.Vy, 72.15.Gd, 72.15.Qm

引用

页码：2088 / 2091

页数：4

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