Spin spectroscopy of Mn-acceptor complex in GaMnAs

B. Lakshmi; Gervais Favrot; Don Heiman

doi:10.1117/12.519975

6 July 2004 Spin spectroscopy of Mn-acceptor complex in GaMnAs

B. Lakshmi, Gervais Favrot, Don Heiman

Proceedings Volume 5359, Quantum Sensing and Nanophotonic Devices; (2004) https://doi.org/10.1117/12.519975
Event: Integrated Optoelectronic Devices 2004, 2004, San Jose, CA, United States

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.

Citation Download Citation

B. Lakshmi, Gervais Favrot, and Don Heiman "Spin spectroscopy of Mn-acceptor complex in GaMnAs", Proc. SPIE 5359, Quantum Sensing and Nanophotonic Devices, (6 July 2004); https://doi.org/10.1117/12.519975

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