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arXiv · 1010.1463

Optical orientation of Mn^2+ ions in GaAs

I. A. Akimov·R. I. Dzhioev·V. L. Korenev·Yu. G. Kusrayev·V. F. Sapega·D. R. Yakovlev·M. Bayer
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Abstract

We report on optical orientation of Mn^2+ in bulk GaAs under application of weak longitudinal magnetic field (B <= 100 mT). The manganese spin polarization of 25% is directly evaluated using spin flip Raman scattering spectroscopy. The dynamical polarization of Mn^2+ occurs due to s-d exchange interaction with optically oriented conduction band electrons. Time-resolved photoluminescence uncovers nontrivial electron spin dynamics where the oriented Mn^2+ ions tend to stabilize the electron spin.

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I. A. Akimov, R. I. Dzhioev, V. L. Korenev, Yu. G. Kusrayev, V. F. Sapega, D. R. Yakovlev, M. Bayer. 2010-10-07. Optical orientation of Mn^2+ ions in GaAs. https://arxiv.org/abs/1010.1463

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