Please use this identifier to cite or link to this item: https://doi.org/10.1109/TMAG.2010.2045478
Title: Achieving highly localized effective magnetic fields with non-uniform rashba spin-orbit coupling for tunable spin current in metal/semiconductor/metal structures
Authors: Fujita, T. 
Jalil, M.B.A. 
Tan, S.G.
Keywords: Semiconductor spintronics
Spin injection
Spin-orbit coupling
Issue Date: Jun-2010
Source: Fujita, T., Jalil, M.B.A., Tan, S.G. (2010-06). Achieving highly localized effective magnetic fields with non-uniform rashba spin-orbit coupling for tunable spin current in metal/semiconductor/metal structures. IEEE Transactions on Magnetics 46 (6) : 1323-1326. ScholarBank@NUS Repository. https://doi.org/10.1109/TMAG.2010.2045478
Abstract: We theoretically study the spin-dependent transport of conduction electrons across typical metal/semiconductor (SC)/metal structures, where the SC channel exhibits Rashba spin-orbit coupling (SOC) and the metal contacts do not. The spatial discontinuity of the Rashba SOC is shown to result in highly localized, effective magnetic field barriers at the device interfaces. As a result, electrons with oppositely polarized spins along the injection direction are found to be transmitted with different probabilities, resulting in a finite spin polarization. The value of the spin polarization depends sensitively on the Rashba SOC strength within the SC channel, which is well known to be adjustable by an applied gate bias. Thus the proposed structure could be useful as a tunable source of spin-polarized current in spintronic applications. © 2006 IEEE.
Source Title: IEEE Transactions on Magnetics
URI: http://scholarbank.nus.edu.sg/handle/10635/69147
ISSN: 00189464
DOI: 10.1109/TMAG.2010.2045478
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

3
checked on Dec 5, 2017

WEB OF SCIENCETM
Citations

2
checked on Nov 14, 2017

Page view(s)

36
checked on Dec 9, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.