Journal
PHYSICAL REVIEW LETTERS
Volume 102, Issue 19, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.102.196802
Keywords
-
Categories
Funding
- SFB TR 12
- DOE [DE-FG02-06ER46313]
- U.S. Department of Energy (DOE) [DE-FG02-06ER46313] Funding Source: U.S. Department of Energy (DOE)
Ask authors/readers for more resources
The spin-Hall effect in a ballistic 2D electron gas with Rashba-type spin-orbit coupling and smooth edge confinement is studied. We predict that the interplay of semiclassical electron motion and quantum dynamics of spins leads to several distinct features in spin density along the edge that originate from the accumulation of turning points from many classical trajectories. A strong peak is found near a point of the vanishing of electron Fermi velocity in the lower spin-split subband. It is followed by a strip of negative spin density that extends until the crossing of the local Fermi energy with the degeneracy point where the two spin subbands intersect. Beyond this crossing there is a wide region of a smooth positive spin density. The total amount of spin accumulated in each of these features exceeds greatly the net spin across the entire edge. The features become more pronounced for shallower boundary potentials.
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