Detection of anomalous Hall voltages in ultra-high mobility two-dimensional hole gases generated by optical spin orientation
Plaut, Annette S.
Pfeiffer, Loren N.
Physical Review B - Condensed Matter and Materials Physics
American Physical Society
By combining optical spin orientation and an externally applied longitudinal electric field, transverse charge accumulation has been detected in very high-mobility two-dimensional hole gases by measuring the transverse voltage drop across simple Hall devices. Our results indicate intrinsic band-structure (rather than extrinsic skew scattering) derived spin-orbit coupling as the underlying mechanism of this spin-polarized transport effect.
Engineering and Physical Sciences Research Council (EPSRC)
Copyright © 2015 American Physical Society
Vol. 91 (20), article 201406(R)