石榴石磁泡膜饱和磁化强度的两种测量方法  

The Discussion of Two Kinds of Methods for Measuring the Saturation Magnetization of Garnet Bubble Films

作　　者：唐贵德[1,2] 韩志勇 张民 王小晋 侯登录[1,2] 聂向富 

机构地区：[1]河北师范大学物理系 [2]邯郸市13中学

出　　处：《河北师范大学学报（自然科学版）》1999年第2期188-190,共3页Journal of Hebei Normal University：Natural Science

基　　金：国家自然科学基金;河北省自然科学基金

摘　　要：用振动样品磁强计（ＶＳＭ）测量了石榴石磁泡膜的饱和磁化强度Ｍ，并与用磁光法测量的结果进行了比较．发现用两种方法测得的Ｍ随温度的升高而下降的趋势存在着明显的差别，用ＶＳＭ测得的下降趋势缓慢，用磁光法测得的下降趋势迅速．这就引出一个问题：与磁光法测量Ｍ有关的理论可能存在着不足．The sturation magnetization ( M ) of garnet bubble films can be measured by the vibrating sample magnetometer(VSM) or by magneto optic method.By a comparison between the two results,we found that,with the increase of temperature,the declined trend of M obtained by the two kinds of methods are obvious different.The declined trend of M measured by VSM is slower than that obtained by magneto-optic method.

关 键 词：磁泡膜 饱和磁化强度 石榴石磁泡膜 磁泡存储器 

分 类 号：TP333.33[自动化与计算机技术—计算机系统结构]