Manipulation of a temporal electron-spin splitter via a δ-potential in an embedded magnetic-electric-barrier microstructure. (23rd November 2021)

• Record Type: Journal Article
• Authors: Liu, Gui-Xiang; Tang, Ge; Liu, Jian-Lin; Guo, Qing-Meng; Yang, Shuai-Quan; Xie, Shi-Shi
• Is Part Of: Communications in theoretical physics. Volume 73:Number 12(2021)
• Publication Date: 2021-11-23
• Subjects: embedded magnetic-electric-barrier microstructure (EMEBM) -- δ-potential -- dwell time -- spin polarization -- manipulable temporal spin splitter; Physics -- Periodicals; 530.105
• DOI: 10.1088/1572-9494/ac3327
• Languages: English
• ISSNs: 0253-6102

Abstract

Abstract: We theoretically explore the manipulation of a temporal electron-spin splitter by a δ -potential in an embedded magnetic-electric-barrier microstructure (EMEBM), which is constructed by patterning a ferromagnetic stripe and a Schottky-metal stripe on the top and bottom of an InAs/Al x In1− x As heterostructure, respectively. Spin polarization of the dwell time remains, even though a δ -potential is inserted by atomic-layer doping. Both the magnitude and sign of the spin-polarized dwell time can be manipulated by changing the weight or position of the δ -potential. Thus, a structurally controllable temporal electron-spin splitter can be obtained for spintronics device applications.