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Thermopower in parallel double quantum dots with Rashba spin-orbit interaction

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【Author】 Xue Hui-Jie a)b),L Tian-Quan a),Zhang Hong-Chen c),Yin Hai-Tao b),Cui Liana),and He Ze-Long a) a) Department of Physics,Center for Condensed Matter Science and Technology,Harbin Institute of Technology,Harbin 150001,China b) Heilongjiang Key Laboratory for Low Dimensional and Mesoscopic Physics,School of Physics and Electronic Engineering,Harbin Normal University,Harbin 150025,China c) Space Materials and Environment Engineering Laboratory,Harbin Institute of Technology,Harbin 150001,China

【机构】 Department of Physics,Center for Condensed Matter Science and Technology,Harbin Institute of Technology； Heilongjiang Key Laboratory for Low Dimensional and Mesoscopic Physics,School of Physics and Electronic Engineering,Harbin Normal University； Space Materials and Environment Engineering Laboratory,Harbin Institute of Technology；

【摘要】 Based on the Green’s function technique and the equation of motion approach,this paper theoretically studies the thermoelectric effect in parallel coupled double quantum dots (DQDs),in which Rashba spin-orbit interaction is taken into account.Rashba spin-orbit interaction contributions,even in a magnetic field,are exhibited obviously in the double quantum dots system for the thermoelectric effect.The periodic oscillation of thermopower can be controlled by tunning the Rashba spin-orbit interaction induced phase.The interesting spin-dependent thermoelectric effects will arise which has important influence on thermoelectric properties of the studied system.更多还原

【Abstract】 Based on the Green’s function technique and the equation of motion approach,this paper theoretically studies the thermoelectric effect in parallel coupled double quantum dots (DQDs),in which Rashba spin-orbit interaction is taken into account.Rashba spin-orbit interaction contributions,even in a magnetic field,are exhibited obviously in the double quantum dots system for the thermoelectric effect.The periodic oscillation of thermopower can be controlled by tunning the Rashba spin-orbit interaction induced phase.The interesting spin-dependent thermoelectric effects will arise which has important influence on thermoelectric properties of the studied system.更多还原

【关键词】 quantum dot； thermopower； Rashba spin-orbit interaction； spin-dependent inter-dot coupling；
【Key words】 quantum dot； thermopower； Rashba spin-orbit interaction； spin-dependent inter-dot coupling；

【基金】 supported by the Scientific Research Fund of Heilongjiang Provincial Education Department of China (GrantNo. 11551145)

【文献出处】 Chinese Physics B ,中国物理B , 编辑部邮箱 ,2011年02期

【分类号】O471.1
【被引频次】2
【下载频次】19

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