Evidence for asymmetric well shapes in post-growth modified GaAs/AlGaAs quantum wells - Koteles, Emil S.; Elman, B.; Armiento, C. A.; Melman, P.; Chi, J. Y.; Holmstrom, R. J.; Powers, J.; Owens, D.; Charbonneau, S.; Thewalt, M. L. W. (American Institute of Physics (AIP), 1989)
http://dx.doi.org/10.1063/1.343656
Keywords: U