Subpicosecond spin relaxation dynamics of excitons and free carriers in GaAs quantum wells

T. C. Damen, Luis Via, J. E. Cunningham, Jagdeep Shah, and L. J. Sham
Phys. Rev. Lett. 67, 3432 – Published 9 December 1991
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Abstract

We have obtained a coherent understanding of spin relaxation processes of electrons, holes, and excitons in quantum walls by investigating subpicosecond dynamics of luminescence polarization. We show that the spin behavior for electrons and holes in quasi-two-dimensional systems is distinct from that in bulk semiconductors and that many-body effects and formation process play an important role in exciton spin relaxation.

  • Received 21 June 1991

DOI:https://doi.org/10.1103/PhysRevLett.67.3432

©1991 American Physical Society

Authors & Affiliations

T. C. Damen, Luis Via, J. E. Cunningham, and Jagdeep Shah

  • AT&T Bell Laboratories, Holmdel, New Jersey 07733

L. J. Sham

  • Department of Physics, University of California at San Diego, La Jolla, California 92093

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Vol. 67, Iss. 24 — 9 December 1991

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