摘要
利用自旋波理论研究某种晶体结构中介观环的持续电流.发现自旋波的量子涨落将影响介观中的持续电流、电流振幅随温度的变化由赝Debye-Waller系数决定.在低温极限下.赝Debye-Waller系数仍不为零.
The influences of the magnon-electron interaction on the persistent currents in the textures mesoscopic ring are studied. We show that the amplitude of the current is exponentially reduced by a factor compared to the free case due to the magnon-electron interaction.
出处
《中山大学学报(自然科学版)》
CAS
CSCD
1996年第3期51-55,共5页
Acta Scientiarum Naturalium Universitatis Sunyatseni
基金
中山大学高等学术研究中心资助
关键词
自旋波
介观环
持续电流
量子涨落
晶体结构
mesoscopic ring, persistent currents, ferromagnetic spin-wave, magnonelectron interaction