多层旋磁介质材料中的耦合法拉第效应  

The Magnetic Coupled Faraday Effect in Multilayer Garnet Materials

作　　者：张怀武[1] 

机构地区：[1]成都电子科技大学17系

出　　处：《磁性材料及器件》1998年第6期5-9,51,共6页Journal of Magnetic Materials and Devices

基　　金：国家教委优秀青年奖金资助

摘　　要：基于磁介质中的传输矩阵和边界矩阵处理方法，建立了多层旋磁介质材料耦合法拉第角计算模型，分析了ＢｉＤｙＩＧ多层石榴石旋磁薄膜的法拉第角频谱。结果表明分层［ＢｉＤｙＩＧ／Ａｌ］材料在３００～５８０ｎｍ波长范围具有极强的法拉第效应，这极有利于短波高密度磁光记录和微波法拉第器件性能改善。Based on the treatment methods of transmisson matrix and boundary matrix in the magnetic medium,a calculation model of magnetic coupled Faraday effect in the multilayer materials was given,and the variation of Faraday angle with frequence also was analyzed. The results show that [Bi,Al∶DyIG] multilayer materials have strong Faraday effect in wavelength range of 300～580nm, which is very useful for the high density magneto optic recording.

关 键 词：磁光材料 磁光记录 法拉第效应 磁介质 

分 类 号：TM276.013[一般工业技术—材料科学与工程]