UNUSUAL 1/T(3) TEMPERATURE-DEPENDENCE OF THE HALL CONDUCTIVITY IN YBA2CU3O7-DELTA

被引：76

作者：

CHIEN, TR

BRAWNER, DA

WANG, ZZ

ONG, NP

机构：

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

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.43.6242

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Measurements of the Hall coefficient R(H) and resistivity rho-a of YBa2Cu3O7 disclose anomalies in their temperature (T) dependences. The 1/R(H) vs T curve has a negative curvature, while d-rho-a/dT displays a previously unreported step near 290 K. The Hall conductivity sigma-H follows an unusual 1/T3 dependence from 100 to 360 K. We contrast the results with predictions of conventional Bloch theory, and compare them with recent calculations based on large-U models. Implications for cyclotron damping at low T are discussed.

引用

页码：6242 / 6245

页数：4

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