【摘要】 介绍了与磁性电极耦合的量子点的近藤共振、单电子能级自旋劈裂、磁化和线性电导等物理性质 .研究结果显示 ,当磁性电极磁矩取向相同的时候 ,线性电导在低温下呈现双峰结构 .而近藤共振和单电子能级的自旋劈裂都可以通过电极的内部磁化强度来控制 ,可以用来产生自旋阀效应 .更多还原

【Abstract】 The properties of a quantum dot coupled with two magnetic electrodes, such as the Kondo resonance, spin-splitting of single electron levels, magnetization, and linear conductance, are discussed. The results show that the linear conductance is of double-peak structure at low temperature. Both the Kondo resonance and the spin-splitting of the single electron levels can be controlled by internal magnetization of the electrodes, which can be used to generate a spin-valve effect.更多还原