Optically detected magnetic resonance from the DX centre in silicon-doped AlxGa1-xAs

Abstract
A new infrared luminescence feature in AlxGa1-xAs is found to correlate with Si doping. Magnetic resonance signals are detected on this luminescence and on the visible L-bound effective-mass donor-to-acceptor recombination luminescence. An observed resonance line with g=1.95 and the infrared luminescence are explained by a simple model involving the bistable character to the DX centre.