Electron transport through a quantum dot ring

被引:17
|
作者
Deng, YX
Yan, XH [1 ]
Tang, NS
机构
[1] Xiangtan Univ, Fac Mat & Photoelect Phys, Xiangtan 411105, Peoples R China
[2] Nanjing Univ Aeronaut & Astronaut, Coll Sci, Nanjing 210016, Peoples R China
关键词
quantum dot; conductance;
D O I
10.7498/aps.55.2027
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Based on the non-equilibrium Green function formalism, we studied the coherent transport through a quantum dot ring. Compared with a one-dimensional quantum dot array, a quantum dot ring presents a number of new quasi-bounding-states in its electronic spectra. Moreover, the enhancement of the inter-dot coupling would lead to the prominent decoherence of Coulomb-blockade conductance oscillation.
引用
收藏
页码:2027 / 2032
页数:6
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