Transverse focusing of spin-polarized photocurrents
Li, J, Gilbertson, AM, Litvinenko, KL, Cohen, LF and Clowes, SK (2012) Transverse focusing of spin-polarized photocurrents Physical Review B (Condensed Matter and Materials Physics), 85, 045431.
PRB focusing.pdf - Accepted version Manuscript
Available under License : See the attached licence file.
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.
|Divisions :||Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Photonics
Faculty of Engineering and Physical Sciences > Physics
|Date :||19 January 2012|
|Identification Number :||10.1103/PhysRevB.85.045431|
|Additional Information :||Copyright 2012 The American Physical Society|
|Depositing User :||Symplectic Elements|
|Date Deposited :||24 Jan 2012 22:22|
|Last Modified :||23 Sep 2013 19:04|
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