University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Spin-galvanic effect due to optical spin orientation

Ganichev, SD, Schneider, P, Bel'kov, VV, Ivchenko, EL, Tarasenko, SA, Wegscheider, W, Weiss, D, Schuh, D, Murdin, BN, Phillips, PJ, Pidgeon, CR, Clarke, DG, Merrick, M, Murzyn, P, Beregulin, EV and Prettl, W (2003) Spin-galvanic effect due to optical spin orientation Physical Review B, 68 (8). - - -.

[img] PDF
0303193v2 - Accepted Version
Available under License : See the attached licence file.

Download (262kB)
[img] Plain Text (licence)

Download (1kB)


Under oblique incidence of circularly polarized infrared radiation the spin-galvanic effect has been unambiguously observed in (001)-grown $n$-type GaAs quantum well (QW) structures in the absence of any external magnetic field. Resonant inter-subband transitions have been obtained making use of the tunability of the free-electron laser FELIX. It is shown that a helicity dependent photocurrent along one of the $<110>$ axes is predominantly contributed by the spin-galvanic effect while that along the perpendicular in-plane axis is mainly due to the circular photogalvanic effect. This strong non-equivalence of the [110] and [1$\bar{1}$0] directions is determined by the interplay between bulk and structural inversion asymmetries. A microscopic theory of the spin-galvanic effect for direct inter-subband optical transitions has been developed being in good agreement with experimental findings.

Item Type: Article
Related URLs:
Divisions: Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Photonics
Faculty of Engineering and Physical Sciences > Physics
Depositing User: Symplectic Elements
Date Deposited: 17 Nov 2011 11:44
Last Modified: 25 Apr 2013 11:43

Actions (login required)

View Item View Item


Downloads per month over past year

Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800