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arXiv 0711.4121cond-mat.str-elcond-mat.mes-hall
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自旋极化电流下的近藤共振

Kondo Resonance in the Presence of Spin-Polarized Currents

Yunong Qi, Jian-Xin Zhu, Shufeng Zhang, C. S. Ting

摘要:

提出了一种改进的运动方程方法来研究自旋相关非平衡条件下的近藤问题。我们发现,以前介绍的非平衡近藤效应的额外重整化是不需要的,当我们使用一个适当的解耦计划。我们的改进配方,然后应用于解决自旋分裂近藤峰时,自旋电流注入到近藤系统。

英文摘要:

We propose an improved method of the equation of motion approach to study the Kondo problem in spin-dependent non-equilibrium conditions. We find that the previously introduced additional renormalization for non-equilibrium Kondo effects is not required when we use a proper decoupling scheme. Our improved formulation is then applied to address the spin-split Kondo peaks when a spin current injects into a Kondo system.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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