ANTIFERROMAGNETICALLY COUPLED CLUSTERS AND SUPERCONDUCTORS IN PULSED MAGNETIC-FIELDS

被引：5
作者：
FONER, S
机构：
[1] MIT, CTR PLASMA FUS, CAMBRIDGE, MA 02139 USA
[2] MIT, DEPT PHYS, CAMBRIDGE, MA 02139 USA
来源：
PHYSICA B-CONDENSED MATTER | 1994年 / 201卷
关键词：
D O I：
10.1016/0921-4526(94)91043-X
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Pulsed field differential magnetization, dM/dB, and Faraday rotation measurements are reviewed in selected dilute magnetic semiconductors which required fields above 30 T for determining the antiferromagnetic exchange interactions between isolated pairs of magnetic ions or large clusters. In some cases, nonequilibrium effects result in a narrowing (or broadening) of the peaks in dM/dB at the level crossing which produce the magnetization steps at high fields. Similar measurements on a molecular ferric wheel cluster of 10 Fe3+ ions are also discussed. Critical field measurements in K3C60 and Rb3C60 and other superconductors are briefly summarized. The pulsed field user facility is outlined.
引用
收藏
页码：13 / 19
页数：7
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