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Proceedings Paper

Spin relaxation in GaAs multiple quantum wells: well-width dependence
Author(s): Peggy Perozzo; Alan Miller
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Paper Abstract

Time-resolved excite-probe measurements were performed on GaAs multiple quantum wells to determine the spin relaxation time as a function of well width (L) at room temperature, and as a function of temperature in the range of 10 to 150 K. These studies suggest that the room temperature spin relaxation time follows an exponential well width dependence, indicating that at room temperature spin flip is dominated by a combination of the D'Yakonov-Perel and the Bir-Aronov-Pikus mechanisms. The low temperature results suggest that a different mechanism, the exchange interaction, is dominant at low temperatures.

Paper Details

Date Published: 19 April 1996
PDF: 8 pages
Proc. SPIE 2694, Quantum Well and Superlattice Physics VI, (19 April 1996); doi: 10.1117/12.238384
Show Author Affiliations
Peggy Perozzo, Grand Valley State Univ. (United States)
Alan Miller, Univ. of Saint Andrews (United Kingdom)


Published in SPIE Proceedings Vol. 2694:
Quantum Well and Superlattice Physics VI
Gottfried H. Doehler; Theodore S. Moise, Editor(s)

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