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Proceedings Paper

Spin spectroscopy of Mn-acceptor complex in GaMnAs
Author(s): B. Lakshmi; Gervais Favrot; Don Heiman
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Paper Abstract

The spin state of holes bound to Mn acceptors in GaMnAs is investigated by optical spectroscopy. Concentrations of Mn from 1017 to 1019 cm-3 were studied as a function of magnetic field and temperature. The photoluminescence from recombination of electrons with holes bound in the Mn-acceptor complex (MAC) displays multiple spectral peaks. The circular polarization of these peaks increases with increasing magnetic field and saturates at ρ ≈ 1/3. This value of polarization is expected from modeling the addition of spin angular momentum and interband optical transition matrix elements.

Paper Details

Date Published: 6 July 2004
PDF: 11 pages
Proc. SPIE 5359, Quantum Sensing and Nanophotonic Devices, (6 July 2004); doi: 10.1117/12.519975
Show Author Affiliations
B. Lakshmi, Northeastern Univ. (United States)
Gervais Favrot, Northeastern Univ. (United States)
Don Heiman, Northeastern Univ. (United States)

Published in SPIE Proceedings Vol. 5359:
Quantum Sensing and Nanophotonic Devices
Manijeh Razeghi; Gail J. Brown, Editor(s)

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