载流子影响下铁磁膜中静磁孤子的存在性分析  

ANALYSIS OF THE EXISTENCE OF MAGNETOSTATIC SOLITONS IN FERROMAGNETIC FILMS UNDER THE INFLUENCE OF CARRIERS

作　　者：郁黎明[1] 王奇[1] 

机构地区：[1]上海大学理学院物理系,上海200436

出　　处：《物理学报》2001年第5期958-963,共6页Acta Physica Sinica

摘　　要：铁磁膜近邻存在半导体载流子的影响下 ,静磁表面波在一定频率范围内与外加恒磁场相垂直的传播方向上能演化成静磁孤子 ,而且静磁表面波群速在一定频率范围会改变运动方向成为反向波 。Under the influence of semiconductor carriers, within certain frequencies, along the direction of propagation perpendicular to the external magnetic field, magnetostatic surface wave can develop into magnetostatic solitons, with the group velocity and phase velocity being opposite to each other, and the magnitude of the velocity changes with the carriers density.

关 键 词：静磁孤子 铁磁膜 静磁表面波 半导体载流子 旋磁材料 电磁波传播 

分 类 号：O484.4[理学—固体物理]