Fano effect of a parallel-coupled triple Rashba quantum dot system  

作　　者：贺泽龙 吕天全 崔莲 薛惠杰 李林军 尹海涛 

机构地区：[1]Center for Condensed-Matter Science and Technology,Harbin Institute of Technology [2]Department of Electronic Engineering,Heilongjiang Institute of Technology [3]School of Physics and Electronic Engineering,Harbin Normal University

出　　处：《Chinese Physics B》2011年第11期456-463,共8页中国物理B（英文版）

基　　金：supported by the Youth Foundation of Heilongjiang Province,China(Grant No.QC2009C41);the Heilongjiang Provincial Natural Science Foundation,China(Grant No.F200939)

摘　　要：Using the nonequilibrium Keldysh Green＇s function technique, the Fano effect of a parallel-coupled triple Rashba quantum dot system is investigated. The conductance as a function of electron energy is numerically calculated. Compared with the case of a parallel-coupled double quantum dot system, two additional Fano resonance peaks occur in the conductance spectrum. By adjusting the structural parameters, the two Fano resonance peaks may change into the resoaance peaks. In addition, the influence of Rashba spin-orbit interaction on the conductance is studied.Using the nonequilibrium Keldysh Green＇s function technique, the Fano effect of a parallel-coupled triple Rashba quantum dot system is investigated. The conductance as a function of electron energy is numerically calculated. Compared with the case of a parallel-coupled double quantum dot system, two additional Fano resonance peaks occur in the conductance spectrum. By adjusting the structural parameters, the two Fano resonance peaks may change into the resoaance peaks. In addition, the influence of Rashba spin-orbit interaction on the conductance is studied.

关 键 词：nonequilibrium Green＇s function Fano effect quantum dot electronic transport 

分 类 号：O471.1[理学—半导体物理]