Abstract
Raman spectroscopy indicates the formation of extended intermixture alloy regions at the interfaces in the GaSb/AlSb superlatttices, which suppress the optical confined modes. A misfit strain was found to be responsible for the high-frequency shift of the optical phonons confined in the AlSb layers. It turned out that, in the ultrathin layer GaSb/AlSb superlattices with layer thicknesses less than 7 monolayers, the strain was completely relaxed in the alloy interface regions. © 1996 American Institute of Physics.
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CITATION STYLE
Da Silva, S. W., Pusep, Y. A., Galzerani, J. C., Lubyshev, D. I., Milekhin, A. G., Preobrazhenskii, V. V., … Semjagin, B. R. (1996). Optical phonon spectra of GaSb/AISb superlattices: Influence of strain and interface roughnesses. Journal of Applied Physics, 80(1), 597–599. https://doi.org/10.1063/1.362725
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