Abstract
We report on a study of spin-dependent recombination processes (SDR)for conduction band electrons on deep paramagnetic centers in a series ofGaAs1−yNy epilayers by time-resolved optical orientation experiments. We demonstrate that thisdilute nitride compound can be used as an effective electron spin filter undera polarized optical excitation of appropriate intensity. This optimum intensitycan moreover be controlled by adjusting the nitrogen composition in the layer.
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