Orbital Kondo anomaly and channel mixing effects in a double quantum dot

被引：0
|
作者：
Sztenkiel, D. [1 ]
Swirkowicz, R. [1 ]
机构：
[1] Warsaw Univ Technol, Fac Phys, PL-00662 Warsaw, Poland
来源：
MATERIALS SCIENCE-POLAND | 2008年 / 26卷 / 03期
关键词：
double quantum dot; Kondo effect;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A system consisting of two quantum dots connected to separate reservoirs is studied and electron transport properties are investigated in the Kondo regime with use of the non-equilibrium Green function technique based on the method of equation of motion. As the orbital quantum number is conserved during tunnelling processes when each dot is attached to its own leads, the orbital SU(2) Kondo effect is observed. It is shown that the mixing between the leads strongly modifies transport properties leading to a considerable suppression of the Kondo resonance.
引用
收藏
页码：699 / 706
页数：8
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