POWDER EPR OF GD3+ IN THE SUPERCONDUCTORS SNMO6S8 AND PBMO6S8

被引：16

作者：

ODERMATT, R ^{[1
]}

HARDIMAN, M ^{[1
]}

VANMEIJEL, J ^{[1
]}

机构：

[1] CATHOLIC UNIV LEUVEN,DEPT NAT SCI,B-3000 LOUVAIN,BELGIUM

来源：

SOLID STATE COMMUNICATIONS | 1979年 / 32卷 / 12期

关键词：

D O I：

10.1016/0038-1098(79)90872-X

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

EPR spectra at 35 and 60 GHz of Gd3+ diluted (∼1%) in powdered SnMo6S8 and PbMo6S8 are presented and interpreted. The crystal field is found to be axial, with D = b20=-760 gauss and -740 Gauss for the tin and lead compounds respectively. Values are obtained for <J(q)> and J(q = 0). Below Tc the impurity to conduction electron relaxation rate is no longer proportional to temperature but decreases more rapidly. From this temperature dependence we extract a value for 2Δ kTc of roughly 5 for both compounds. © 1979.

引用

页码：1227 / 1231

页数：5

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