Transport through a coupled quantum dot system: Role of interdot interactions

被引：31
|
作者：
Lamba, S [1 ]
Joshi, SK [1 ]
机构：
[1] RAC, Delhi 110054, India
来源：
PHYSICAL REVIEW B | 2000年 / 62卷 / 03期
关键词：
D O I：
10.1103/PhysRevB.62.1580
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The coupled double quantum dot system is modeled by a two impurity Anderson-type Hamiltonian and interdot Coulomb interaction is included. The conductance of this system is calculated using a nonequilibrium Green's-function formalism. We have evaluated conductance, peak splitting, and amplitude of conductance peaks as a function of Fermi energy for various values of parameters of the model Hamiltonian. It is demonstrated that an interdot interaction whose strength is assumed to be 10% of the ondot Coulomb interaction produces significant changes in the conductance in a coupled double quantum dot system.
引用
收藏
页码：1580 / 1583
页数：4
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