Journal
RESULTS IN PHYSICS
Volume 30, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.rinp.2021.104898
Keywords
Magnetically and electrically confined; semiconductor microstructure; Zeeman interaction; Spin-orbit coupling; Electron-spin polarization; Controllable electron-spin filter
Funding
- National Natural Science Foundation of China [11864009, 62164005]
Ask authors/readers for more resources
In this study, we investigate the spin polarization of electrons in magnetically and electrically confined semiconductor microstructures. We found that the electron-spin polarization mainly comes from spin-orbit coupling due to the small effective g-factor for GaAs, and the magnitude and sign of spin polarization can be manipulated by adjusting the interfacial confining electric field or strain engineering, making it a tunable electron-spin filter for spintronics device applications.
We theoretically investigate spin polarization for electrons in magnetically and electrically confined semiconductor microstructure, which is constructed by patterning a ferromagnetic stripe and a Schottky-metal stripe on top and bottom of GaAs/AlxGa1-xAs heterostructure, respectively. Both Zeeman interaction and spin-orbit coupling are taken into account; however, electron-spin polarization comes mainly from the latter due to a small effective g-factor for GaAs. Besides, both magnitude and sign of spin polarization can be manipulated by changing interfacial confining electric field or strain engineering, resulting in a tunable electron-spin filter for spintronics device applications.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available