摘要
计算了自旋电子隧穿铁磁/半导体/铁磁异质结的隧穿系数.根据Landauer-Büttier公式及其理论框架,计算了零温时的散粒噪声和电导,对散粒噪声和电导的函数曲线进行了对比分析,讨论了它们和Rashba自旋轨道耦合效应及量子尺寸效应的关系.
The transmission coefficient of the spin electrons tunnel the ferromagnetic/semiconductor/ferromagnetic （FM/S/FM） heterojunction was calculated. Based on the formula and the theory frame bf Landauer- Büttiker, the shot noise power and the conductance at zero temperature were calculated. Finally, carried out comparative analysis of the function curves of shot noise power and conductance, and discussed their relations with Rashba spin-orbit interaction and quantum dimension.
出处
《河北师范大学学报（自然科学版）》
CAS
北大核心
2008年第5期620-624,共5页
Journal of Hebei Normal University：Natural Science
基金
国家自然科学基金(10674040)
关键词
自旋轨道耦合效应
隧穿系数
散粒噪声
电导
spin-orbit effect
tunneling coefficient
shot noise power
conductance
