SEARCH FOR ANOMALOUS INTERNAL MAGNETIC-FIELDS IN HIGH-TC SUPERCONDUCTORS AS EVIDENCE FOR BROKEN TIME-REVERSAL SYMMETRY

被引：100

作者：

KIEFL, RF

BREWER, JH

AFFLECK, I

CAROLAN, JF

DOSANJH, P

HARDY, WN

HSU, T

KADONO, R

KEMPTON, JR

KREITZMAN, SR

LI, Q

OREILLY, AH

RISEMAN, TM

SCHLEGER, P

STAMP, PCE

ZHOU, H

LE, LP

LUKE, GM

STERNLIEB, B

UEMURA, YJ

HART, HR

LAY, KW

机构：

[1] UNIV BRITISH COLUMBIA,VANCOUVER V6T 2A3,BC,CANADA

[2] COLUMBIA UNIV,DEPT PHYS,NEW YORK,NY 10027

[3] GE,CORP RES & DEV,SCHENECTADY,NY 12301

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.64.2082

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Several recent models of high-Tc superconductivity predict static internal magnetic fields along the c axis due to spontaneously broken parity and time-reversal symmetries. Muon spin relaxation has been used to study the internal fields in c-axis-oriented samples of sintered YBa2Cu3O7 and of thick-film Bi2Sr2CaCu2O8. The magnitude, anisotropy, and temperature dependence of the observed fields favor a nuclear dipolar origin. Any anomalous fields at + sites in bulk CuO2 superconductors must be 0.08 mT. © 1990 The American Physical Society.

引用

页码：2082 / 2085

页数：4

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