MAGNETOOPTIC PROPERTIES OF MACROSCOPIC FERRIMAGNETS

被引：22

作者：

GAMBINO, RJ ^{[1
]}

FUMAGALLI, P ^{[1
]}

机构：

[1] RHEIN WESTFAL TH AACHEN,INST PHYS 2,D-52056 AACHEN,GERMANY

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1994年 / 30卷 / 06期

关键词：

D O I：

10.1109/20.334121

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A new class of two phased materials, called macroscopic ferrimagnets, displays many properties associated with ferrimagnetism including magnetic compensation points. A typical material system which shows this phenomenon is cobalt containing congruent to 100 Angstrom precipitates of EuS. The negative exchange in these systems is relatively weak so the remanent magneto-optic properties show the ferrimagnetic state, but at fields above 2 to 3 T, alignment of both the Co and EuS with the field can occur. In addition to the usual magnetic compensation point at which the sign of the magneto-optic loop reverses, we observe a second, magneto-optic, compensation point which occurs when the Kerr rotation of the two phases are equal and opposite.

引用

页码：4461 / 4463

页数：3