Physics – Condensed Matter – Materials Science
Scientific paper
2004-05-29
Proceedings of SPIE, Vol. #5359 (2004)
Physics
Condensed Matter
Materials Science
11 Pages, 6 Figures, Latex with spie.cls and spiebib.bst. Paper #5359-46 presented Wednesday, Jan 28, 2004, at the SPIE Photon
Scientific paper
The spin state of holes bound to Mn acceptors in GaMnAs is investigated by optical spectroscopy. Concentrations of Mn from 10^17 to 10^19 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 rho of these peaks increases with increasing magnetic field and saturates at rho ~= 1/3. This value of polarization is expected from modeling the addition of spin angular momentum and interband optical transition matrix elements.
Favrot G.
Heiman Don
Lakshmi B.
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