量子环上双电子激发态的研究  

Study of the excited ststes of the two-electrons system on a quantum ring

作　　者：吴洪[1] 苏珠顺[1] 郑凯[1] 林燕萌[2] 

机构地区：[1]集美大学理学院,福建厦门361021 [2]集美大学计算机学院,福建厦门361021

出　　处：《广西大学学报（自然科学版）》2008年第3期280-284,共5页Journal of Guangxi University（Natural Science Edition）

基　　金：福建省自然科学基金计划资助项目(T0650010)

摘　　要：研究外加电场以及荷电杂质电场对量子环上双电子激发态的影响.结果表明:激发态对含有双电子的量子环中的能谱和持续电流具有控制作用.在某些情况下相邻能级和持续电流的振幅可增至几个数量级.该结论对于设计和研制微器件具有指导意义.The properties of the excited states of the electrons system on the quantum ring are studied ,when the electric fields are applied to it. The electric fields include both/either the external field and/or from the impurity charges. The results show that these fields can controll the eigen state energy and the persistant current as well. In certain case,the amount of persistant current can increase by several order of magnitude between adjacent excited states. This conclusion will be very useful for design the micro-electron devices.

关 键 词：量子环 双电子 激发态 电场 持续电流 

分 类 号：O488[理学—固体物理] O469[理学—物理]