Spin-Hall effect in a finite two-dimensional electron gas sample with a central defect
Resource
Journal of Applied Physics, 105(7), 07E908
Journal
Journal of Applied Physics
Pages
07E908
Date Issued
2009
Date
2009
Author(s)
Abstract
We study spin and charge accumulation in two-dimensional electron gas (2DEG) with spin-orbit Rashba interactions. The Landauer–Keldysh formalism is employed to numerically compute accumulations in a 2DEG finite square sample with and without an embedded spin-independent hard-wall impurity. Cases with two and four attached ideal leads are considered. We find that in the two directions perpendicular to the Rashba field the impurity induces, respectively, a dipole and a quadrupole. In the direction parallel to the Rashba field the spin accumulation is determined purely by the imposed boundary conditions.
SDGs
File(s)![Thumbnail Image]()
Loading...
Name
13.pdf
Size
23.41 KB
Format
Adobe PDF
Checksum
(MD5):49c0bcf9fb083fb455e22521f5d9bbb6