F.W. Saris, W.K. Chu, et al.
Applied Physics Letters
We report the observation of an acoustic phonon mode, usually not Raman active, which is interpreted here as a disorder-activated longitudinal acoustic mode. Because of good matching of lattice constants and nearest-neighbor force constants in the alloy system GaxAl1-xAs, a simple theory has been successfully applied to obtain information on the electronic states. © 1972 The American Physical Society.
F.W. Saris, W.K. Chu, et al.
Applied Physics Letters
L. Esaki, L.L. Chang
Proceedings of the IEEE
E. Mendez, G. Bastard, et al.
Physical Review B
R. Ludeke, L.L. Chang, et al.
Applied Physics Letters