Tamm states in superlattices

H. Ohno, E. E. Mendez, A. Alexandrou, J. M. Hong

Research output: Contribution to journalArticlepeer-review

42 Citations (Scopus)

Abstract

We present experimental results on the localized "surface" states, known as Tamm states, in superlattices. A terminating layer of AlyGa1-yAs on GaAs/AlxGa1-xAs As superlattices produced Tamm states at the states at the interface, which are observed by interaband optical transitions. Results clearly show the presence of localized Tamm states, either above or below the miniband states depending on the composition of the terminating layer, and their interaction with other extended superlattice states.

Original languageEnglish
Pages (from-to)161-165
Number of pages5
JournalSurface Science
Volume267
Issue number1-3
DOIs
Publication statusPublished - 1992
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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