Magneto-Photoluminescence of InAs/InGaAs/InAlAs quantum well structures

Ya. V. Terent'ev; S. N. Danilov; J. Loher; D. Schuh; D. Bougeard; D. Weiss; M. V. Durnev; S. A. Tarasenko; M. S. Mukhin; S. V. Ivanov; S. D. Ganichev

doi:10.1063/1.4868644

Magneto-Photoluminescence of InAs/InGaAs/InAlAs quantum well structures

Mesoscale and Nanoscale Physics 2015-06-18 v2

Authors: Ya. V. Terent'ev , S. N. Danilov , J. Loher , D. Schuh , D. Bougeard , D. Weiss , M. V. Durnev , S. A. Tarasenko , M. S. Mukhin , S. V. Ivanov , S. D. Ganichev

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Abstract

Photoluminescence (PL) and highly circularly-polarized magneto-PL (up to 50% at 6 T) from two-step bandgap InAs/InGaAs/InAlAs quantum wells (QWs) are studied. Bright PL is observed up to room temperature, indicating a high quantum efficiency of the radiative recombination in these QW. The sign of the circular polarization indicates that it stems from the spin polarization of heavy holes caused by the Zeeman effect. Although in magnetic field the PL line are strongly circularly polarized, no energy shift between the counter-polarized PL lines was observed. The results suggest that the electron and the hole g-factor to be of the same sign and close magnitudes.

Keywords

magneto-photoluminescence quantum wells InAs/InGaAs/InAlAs circular polarization Zeeman effect g-factor spin polarization

Cite

@article{arxiv.1401.7515,
  title  = {Magneto-Photoluminescence of InAs/InGaAs/InAlAs quantum well structures},
  author = {Ya. V. Terent'ev and S. N. Danilov and J. Loher and D. Schuh and D. Bougeard and D. Weiss and M. V. Durnev and S. A. Tarasenko and M. S. Mukhin and S. V. Ivanov and S. D. Ganichev},
  journal= {arXiv preprint arXiv:1401.7515},
  year   = {2015}
}

Magneto-Photoluminescence of InAs/InGaAs/InAlAs quantum well structures

Abstract

Keywords

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