Influences of multiterminal and time-dependent magnetic field on the transport properties of triple quantum dots

被引：4
|
作者：
Deng, Y. X. [1 ]
Yan, X. H. [1 ]
Tang, N. S. [1 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Coll Sci, Nanjing 210016, Peoples R China
来源：
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2009年 / 41卷 / 03期
关键词：
Quantum dots; Electron transport; Nanodevices; COMPUTATION;
D O I：
10.1016/j.physe.2008.07.024
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
By developing the rate equation method, we study the transport properties of a three-terminal triple quantum dot system in the presence of a perpendicular magnetic field. It is shown that the inter-clot coupling between two quantum dots, which contacted with two drains, brings a "sticking" effect and causes decay in the source-drain current, and localization of electrons. We also investigate the coexistence and interplay of multiterminal interference and Aharonov-Bohm (AB) effects under the condition of two output terminals. Furthermore, we found that the fundamental periodic oscillation in the I-flux curves would weaken with the increase in magnetic field frequency. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：353 / 358
页数：6
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