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NM/FS1/FS2/NM结的隧穿电导和隧穿磁电阻

Keywords: 隧穿磁电阻,铁磁半导体,Rashba耦合

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Abstract:

利用平均场近似和转移矩阵方法,对NM/FS1/FS2/NM结(NM为非磁金属,FS1和FS2为铁磁半导体层)的隧穿磁电阻(TMR)与FS层厚度及Rashba自旋轨道耦合的关系进行了研究.结果表明NM/FS1/FS2/NM结中TMR值随半导体层厚度的改变发生周期性变化,选择适当的半导体层的厚度和Rashba自旋轨道耦合系数可以得到大的TMR值.

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