Macroscopic transport of a current-induced spin polarization

S. Ullah; G. J. Ferreira; G. M. Gusev; A. K. Bakarov; F. G. G. Hernandez

doi:10.1088/1742-6596/864/1/012060

Macroscopic transport of a current-induced spin polarization

Mesoscale and Nanoscale Physics 2017-09-13 v1

Authors: S. Ullah , G. J. Ferreira , G. M. Gusev , A. K. Bakarov , F. G. G. Hernandez

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Abstract

Experimental studies of spin transport in a two-dimensional electron gas hosted by a triple GaAs/AlGaAs quantum well are reported. Using time-resolved Kerr rotation, we observed the precession of the spin polarization about a current-controlled spin-orbit magnetic field. Spatially-resolved imaging showed a large variation of the electron g-factor and the drift transport of coherent electron spins over distances exceeding half-millimetre in a direction transverse to the electric field.

Keywords

spin transport two-dimensional electron gas GaAs/AlGaAs quantum well time-resolved Kerr rotation spin-orbit magnetic field drift transport

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@article{arxiv.1608.06983,
  title  = {Macroscopic transport of a current-induced spin polarization},
  author = {S. Ullah and G. J. Ferreira and G. M. Gusev and A. K. Bakarov and F. G. G. Hernandez},
  journal= {arXiv preprint arXiv:1608.06983},
  year   = {2017}
}

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Proceedings of the 33rd International Conference on the Physics of Semiconductors (ICPS) 2016

Macroscopic transport of a current-induced spin polarization

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