Detection of anomalous Hall voltages in ultra-high mobility two-dimensional hole gases generated by optical spin orientation
Vasyukov, D.A.; Plaut, Annette S.; Henini, M.; et al.Pfeiffer, Loren N.; West, K.W.; Nicoll, C.A.; Farrer, I.; Ritchie, D.A.
Date: 15 May 2015
Journal
Physical Review B - Condensed Matter and Materials Physics
Publisher
American Physical Society
Publisher DOI
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Abstract
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 ...
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.
Physics and Astronomy
Faculty of Environment, Science and Economy
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