Manipulation of a temporal electron-spin splitter via aδ-potential in an embedded magnetic-electric-barrier microstructure  

作　　者：Gui-Xiang Liu Ge Tang Jian-Lin Liu Qing-Meng Guo Shuai-Quan Yang Shi-Shi Xie 

机构地区：[1]College of Science,Shaoyang University,Shaoyang 422000,China

出　　处：《Communications in Theoretical Physics》2021年第12期180-185,共6页理论物理通讯（英文版）

基　　金：supported by the Science and Technology Innovation Plan Project of Hunan Province in China(S2019JJQNJJ2177);the National Natural Science Foundation of China(11864009)。

摘　　要：We theoretically explore the manipulation of a temporal electron-spin splitter by aδ-potential in an embedded magnetic-elec tric-barrier micro structure(EMEBM),which is constructed by patterning a ferromagnetic stripe and a Schottky-metal stripe on the top and bottom of an InAs/Al_(x)In_(1-x)As heterostructure,respectively.Spin polarization of the dwell time remains,even though aδ-potential is inserted by atomic-layer doping.Both the magnitude and sign of the spinpolarized dwell time can be manipulated by changing the weight or position of the 6-potential.Thus,a structurally controllable temporal electron-spin splitter can be obtained for spintronics device applications.

关 键 词：embedded magnetic-electric-barrier microstructure(EMEBM) δ-potential dwell time spin polarization manipulable temporal spin splitter 

分 类 号：O469[理学—凝聚态物理]