Issue |
EPL
Volume 106, Number 1, April 2014
|
|
---|---|---|
Article Number | 17002 | |
Number of page(s) | 5 | |
Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
DOI | https://doi.org/10.1209/0295-5075/106/17002 | |
Published online | 02 April 2014 |
Spin filtering in nanowire directional coupler
1 Departamento de Física, Universidade Federal de São Carlos - 13565-905, São Carlos, São Paulo, Brazil
2 Department of Physics and Astronomy and Nanoscale and Quantum Phenomena Institute, Ohio University Athens, OH 45701-2979, USA
3 Dahlem Center for Complex Quantum Systems and Fachbereich Physik, Freie Universität Berlin 14195 Berlin, Germany
Received: 30 January 2014
Accepted: 20 March 2014
The spin transport characteristics of a nanowire directional electronic coupler have been evaluated theoretically via a transfer matrix approach. The application of a gate field in the region of mixing allows for control of spin current through the different leads of the coupler via the Rashba spin-orbit interaction. The combination of spin-orbit interaction and applied gate voltages on different legs of the coupler give rise to a controllable modulation of the spin polarization. Both structural factors and field strength tuning lead to a rich phenomenology that could be exploited in spintronic devices.
PACS: 73.63.-b – Electronic transport in nanoscale materials and structures / 75.76.+j – Spin transport effects / 62.23.Hj – Nanowires
© EPLA, 2014
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.