Electron tunneling in an asymmetry heterostructure under the influence of both dresselhaus and rashba spin–orbit terms
The problem of spin dependent electron transmission through an asymmetric InAs/GaSb/InAs well is studied theoretically in order to investigate the output transmission current polarization at a zero magnetic field. Transparency of electron transmission is calculated as a function of electron energ...
Saved in:
| Main Author: | |
|---|---|
| Format: | article |
| Language: | EN |
| Published: |
D.Ghitu Institute of Electronic Engineering and Nanotechnologies
2010
|
| Subjects: | |
| Online Access: | https://doaj.org/article/f932f96ce2b74bd886dad7d41846055b |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | The problem of spin dependent electron transmission through an asymmetric
InAs/GaSb/InAs well is studied theoretically in order to investigate the output transmission current polarization at a zero magnetic field. Transparency of electron transmission is calculated as a
function of electron energy as well as the well width within the one electron band approximation
along with the spin orbit interaction. We predict that a spin-polarized current spontaneously
emerges in the absence of magnetic material and magnetic field. This phenomenon may offer a
novel way for generating a spin-polarized current, replacing the traditional spin-injection method.
|
|---|