Transverse focusing of spin-polarized photocurrents
Li, Juerong, Gilbertson, AM, Litvinenko, Konstantin, Cohen, LF and Clowes, Steven (2012) Transverse focusing of spin-polarized photocurrents Physical Review B (Condensed Matter and Materials Physics), 85 (4), 045431.
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Abstract
We measure transverse magnetically focused photocurrent signals in an InSb/InAlSb quantum well device. Using optical spin orientation by modulated circularly polarized light an electron spin-dependent signal is observed due to the spin-orbit interaction. Simulations of the focusing signal are performed using a classical billiard ball model, which includes both spin precession and a spin-dependent electron energy. The simulated data suggest that a signal dependent on the helicity of the incident light is expected for a Rashba parameter α > 0.1 eVÅ and that a splitting of the focusing signal is not expected to be observed in linear polarized photocurrent and purely electrical measurements.
Item Type: | Article | ||||||||||||||||||
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Divisions : |
Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Photonics Faculty of Engineering and Physical Sciences > Physics |
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Authors : |
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Date : | 19 January 2012 | ||||||||||||||||||
DOI : | 10.1103/PhysRevB.85.045431 | ||||||||||||||||||
Copyright Disclaimer : | Copyright 2012 American Physical Society | ||||||||||||||||||
Depositing User : | Symplectic Elements | ||||||||||||||||||
Date Deposited : | 24 Jan 2012 22:22 | ||||||||||||||||||
Last Modified : | 06 Jul 2019 05:09 | ||||||||||||||||||
URI: | http://epubs.surrey.ac.uk/id/eprint/148877 |
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Transverse focusing of spin-polarized photocurrents (deposited 03 Dec 2012 10:41)
- Transverse focusing of spin-polarized photocurrents (deposited 24 Jan 2012 22:22) [Currently Displayed]
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