Orbital Fano-Kondo effect in double quantum dots

被引：2
|
作者：
Crisan, M. [1 ]
Grosu, I. [1 ]
机构：
[1] Univ Cluj, Dept Theoret Phys, Cluj Napoca 3400, Romania
来源：
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2010年 / 42卷 / 09期
关键词：
Quantum dots; Orbital Kondo effect;
D O I：
10.1016/j.physe.2010.05.030
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The orbital Rondo effect in an Aharonov-Bohm interferometer with an inter-dot coupling is studied using the equation of motion method. We calculated the occupancy of the dots for finite Coulomb and infinite Coulomb interaction. We showed that the occupancy of the dot is essential for the occurrence of the orbital Rondo effect. The result obtained for the conductance has a similar dependence as the expression obtained for spin Kondo model, but a supplementary dependence of dot occupation appears. The Fano line is also enhanced and we calculated the parameter which is compared to the result from the case of spin Kondo effect. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：2446 / 2450
页数：5
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