Transverse focusing of spin-polarized photocurrents
Li, J, Litvinenko, KL, Clowes, SK, Gilbertson, AM and Cohen, LF (2012) Transverse focusing of spin-polarized photocurrents Physical Review B - Condensed Matter and Materials Physics, 85 (4).
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 α0.1eVand that a splitting of the focusing signal is not expected to be observed in linear polarized photocurrent and purely electrical measurements. © 2012 American Physical Society.
|Divisions :||Faculty of Health and Medical Sciences|
|Date :||19 January 2012|
|Identification Number :||10.1103/PhysRevB.85.045431|
|Additional Information :||Copyright 2009 The American Physical Society.|
|Depositing User :||Symplectic Elements|
|Date Deposited :||03 Dec 2012 10:41|
|Last Modified :||23 Sep 2013 19:47|
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