EFFECTIVE ZERO-FIELD SPLITTING IN THE GROUND DOUBLET IN ERBA2CU3OX

被引：9

作者：

HUANG, MX

JACKSON, EM

BHAGAT, SM

GUPTA, LC

RAJARAJAN, AK

VIJAYARAGHAVAN, R

机构：

[1] UNIV MARYLAND,DEPT PHYS & ASTRON,CTR SUPERCOND RES,COLLEGE PK,MD 20742

[2] TATA INST FUNDAMENTAL RES,BOMBAY 400005,INDIA

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1991年 / 97卷 / 1-3期

关键词：

D O I：

10.1016/0304-8853(91)90195-G

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the frequency and magnetic-field dependence of the microwave absorption in ErBa2Cu3O(x) for 1.3 K < T < 100 K. At temperatures below about 10 K, there is a huge increase in the absorption at zero field. Surprisingly, this giant effect comes from the electron spin resonance involving the lowest-lying Kramers doublet of the Er3+ ion. The ESR is broad and highly distorted, presumably due to a wide distribution of slowly varying dipolar fields which, in turn, leads to an effective zero field splitting of about 1 K.

引用

页码：297 / 304

页数：8

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