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

Sunglae Cho, Yunki Kim, Suk J. Youn, Antonio DiVenere, George K.L. Wong, Arthur J. Freeman, J. B. Ketterson, Linda J. Olafsen, Igor Vurgaftman, Jerry R. Meyer, Craig A. Hoffman, George K.L. Wong, J. B. Ketterson, Linda J. Olafsen

Research output: Contribution to journalArticle

14 Citations (Scopus)

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
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume64
Issue number23
DOIs
Publication statusPublished - Jan 1 2001

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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    Cho, S., Kim, Y., Youn, S. J., DiVenere, A., Wong, G. K. L., Freeman, A. J., Ketterson, J. B., Olafsen, L. J., Vurgaftman, I., Meyer, J. R., Hoffman, C. A., Wong, G. K. L., Ketterson, J. B., & Olafsen, L. J. (2001). Artificially ordered Bi/Sb superlattice alloys: Fabrication and transport properties. Physical Review B - Condensed Matter and Materials Physics, 64(23). https://doi.org/10.1103/PhysRevB.64.235330