Spin-sensitive Bleaching and Spin-Relaxation in QW's

Petra Schneider; S. D. Ganichev; J. Kainz; U. Roessler; W. Wegscheider; D. Weiss; V. V. Bel'kov; L. E. Golub; D. Schuh; W. Prettl

doi:10.1002/pssb.200303182

Spin-sensitive Bleaching and Spin-Relaxation in QW's

Condensed Matter 2015-06-24 v1

Authors: Petra Schneider , S. D. Ganichev , J. Kainz , U. Roessler , W. Wegscheider , D. Weiss , V. V. Bel'kov , L. E. Golub , D. Schuh , W. Prettl

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Abstract

Spin-sensitive saturation of absorption of infrared radiation has been investigated in p-type GaAs QWs. It is shown that the absorption saturation of circularly polarized radiation is mostly controlled by the spin relaxation time of the holes. The saturation behavior has been investigated for different QW widths and in dependence on the temperature with the result that the saturation intensity substantially decreases with narrowing of QWs. Spin relaxation times were experimentally obtained by making use of calculated (linear) absorption coefficients for inter-subband transitions.

Keywords

spin relaxation spin polarization and magnetic phenomena optical absorption spectroscopy

Cite

@article{arxiv.cond-mat/0303056,
  title  = {Spin-sensitive Bleaching and Spin-Relaxation in QW's},
  author = {Petra Schneider and S. D. Ganichev and J. Kainz and U. Roessler and W. Wegscheider and D. Weiss and V. V. Bel'kov and L. E. Golub and D. Schuh and W. Prettl},
  journal= {arXiv preprint arXiv:cond-mat/0303056},
  year   = {2015}
}

Spin-sensitive Bleaching and Spin-Relaxation in QW's

Abstract

Keywords

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