Nonequilibrium Kondo effect in asymmetrically coupled quantum dots

被引：0
|
作者：
Krawiec, M [1 ]
Wysokinski, KI [1 ]
机构：
[1] Marie Curie Sklodowska Univ, Inst Phys, PL-20031 Lublin, Poland
来源：
PHYSICAL REVIEW B | 2002年 / 66卷 / 16期
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D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A quantum dot asymmetrically coupled to external leads has been analyzed theoretically by means of the equation-of-motion technique and the noncrossing approximation. The system has been described by the single-impurity Anderson model. To calculate the conductance across the device the nonequilibrium Green's function technique has been used. The obtained results show the importance of the asymmetry of the coupling for the appearance of the Kondo peak at nonzero voltages and qualitatively explain recent experiments.
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页数：7
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