Photoreflectance, absorption, and nuclear resonance reaction studies of AlxGa1−x As grown by molecular-beam epitaxy - Huang, D.; Ji, G.; Reddy, U. K.; Morkoç, H.; Xiong, F.; Tombrello, T. A. (American Institute of Physics (AIP), 1988)
http://dx.doi.org/10.1063/1.340366
Keywords: U