Cation interdiffusion in GaAs-AlAs superlattices measured with Raman spectroscopy

J. Grant, J. Menéndez, L. N. Pfeiffer, K. W. West, E. Molinari, S. Baroni

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


A combined Raman and ab initio lattice dynamical study of ultrathin (GaAs)4(AlAs)4 superlattices, focusing mainly on AlAs-like vibrations, clearly shows that a significant amount of interdiffusion occurs in these samples when grown at conventional molecular-beam epitaxy temperatures between 580 and 640 °C. At these temperatures, growth interruption is found to have little impact on the structural quality of the superlattices.

Original languageEnglish (US)
Pages (from-to)2859-2861
Number of pages3
JournalApplied Physics Letters
Issue number22
StatePublished - 1991
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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