摘要
用Camley和Barnas等人的唯象理论方法,计算了相邻铁层间具有反铁磁耦合的层数较多的Fe/Cr多层膜,在外磁场平行和垂直于膜面情况下的磁电阻与外磁场的关系,并与实验结果作了比较,符合得较好。在计算中利用对称性条件,对Camley和Barnas等人的理论进行了简化,求出了电子分布函数和磁电阻的显式解。
Based on the phenomenological theory of Camley and Barnas and coworkers(C- B),the dependence of magnetoresistance in Fe/Cr multilayers on the applied magne- tic field is calculated.In these multilayers an antiferromagnetic coupling exists be- tween any two adjacent Fe-layers.The applied magnetic field is either parallel orperpendicular to the layers.Good agreement of the calculated results with the ex- perimental ones is found.The symmetry implicitly involved in the C-B theory isdisclosed and is used to simplify the original C-B formalism,this leads to the closedexpressions for the distribution function of conducting electrons and for magnetore-sistance.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
1994年第1期110-117,共8页
Acta Physica Sinica
基金
国家自然科学基金
中国科学院物理研究所磁学国家重点实验室资助
关键词
多层磁膜
磁电阻
磁场
唯象理论
Magnetic field effects
Metallic superlattices