Optical Spectroscopy of the Hole Spin in GaMnAs Acceptors
نویسنده
چکیده
The spin state of holes bound to Mn acceptors in GaMnAs is investigated by optical spectroscopy. Concentrations of Mn from 10 to 10 cm 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.
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تاریخ انتشار 2004