Artificially ordered Bi/Sb superlattice alloys: Fabrication and transport properties

S. Cho, Y. Kim, S. J. Youn, A. DiVenere, G. K L Wong, A. J. Freeman, J. B. Ketterson, L. J. Olafsen, I. Vurgaftman, J. R. Meyer, C. A. Hoffman

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

We have fabricated Bi/Sb superlattice alloys that are artificially ordered on the atomic scale using molecular-beam epitaxy. We observe that by changing the superlattice period thickness, the electronic structure can be “tuned” from a semimetal, through zero gap, to a narrow-gap semiconductor. These unique properties, which are distinct from those in random alloys, are believed to be a consequence of ordered atomic configurations.

Original languageEnglish (US)
Article number235330
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume64
Issue number23
DOIs
StatePublished - 2001

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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