Bulletin of the American Physical Society
APS March Meeting 2011
Volume 56, Number 1
Monday–Friday, March 21–25, 2011; Dallas, Texas
Abstract: C1.00131 : 2D Waveguides as spin devices: spin-orbit and lead effects
Author:
Straight waveguides with different shapes have been proposed as
devices to control the spin polarized transport,
with Rahsba spin-orbit interaction as the mechanism to induce
spin mixing. Several theoretical
approaches have been applied, mostly based on transfer-matrix method.
Here, the Schroedinger equation is solved by means of the
Finite-Element Method,finding good agreement
with previous calculations.
It is known that positions of the leads
influence the ballistic transport in this sort of cavities due to
changes in the spatial symmetry.
The role of the lead positions on the transmission and, in turn
on the spin polarization, will be discussed
for several geometries. The linear Dresselhaus interaction is
taken into account to consider zincblende structure.
Implications for quantum dots is also addresed.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.MAR.C1.131
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