MAGNETIC-FIELD EFFECTS ON THE FLUORESCENCE OF CR3+ IN GDALO3

被引：9

作者：

HELMAN, JS

CARVALHO, RA

PANEPUCCI, H

TERRILE, MC

AEGERTER, MA

SOAREZ, E

机构：

[1] UNIV SAO PAULO,INST FIS QUIM SAO CARLOS,DEPT FIS CIENCIA MAT,SAO PAULO,BRAZIL

[2] UNIV FED PERNAMBUCO,DEPT FIS,RECIFE,BRAZIL

来源：

SOLID STATE COMMUNICATIONS | 1979年 / 31卷 / 12期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0038-1098(79)90022-X

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The fluorescence spectrum of Cr3+ in GdAlO3 has been examined at 4.2 K as a function of magnetic field up to 60 kG. The resulting splitting of the 2E → 4A2 emission lines are explained in terms of a modified molecular field approximation, which incorporates the effect of the spin fluctuations. The exchange constant in the relaxed excited state is found to be 1.2 cm-1, which differs from that reported from absorption data. It is suggested that the difference may be related to the Frank-Condon effect. © 1979.

引用

页码：1015 / 1018

页数：4

共 6 条

[1] ANTIFERROMAGNETISM AND MAGNETIC PHASE DIAGRAM OF GDALO3 [J].