Topological insulating state in bismuth doped with antimony and arsenic: infrared and magneto-optical studies

POSTER

Abstract

Bismuth and its alloys with antimony have attracted attention in recent years due to the possibility of having a topological insulating state. In this study we have used infrared and magneto-optical spectroscopies to probe the electrodynamic response of bismuth doped with of antimony and arsenic. The spectra will be presented for temperatures down to 5 K, and in magnetic fields as high as 18 Tesla. The results have revealed a strong magneto-optical activity, especially around the plasma minimum in reflectance. These findings will be compared and contrasted with magneto-optical results from other 3D topological insulators.

Authors

  • G.M. Foster

    • The University of Akron

  • S.V. Dordevic

    • The University of Akron

  • N. Stojilovic

    • University of Wisconsin Oshkosh

  • V.M. Nikolic

    • Institute for Multidisciplinary Research, University of Belgrade

  • S.S. Vujatovic

    • Serbian Academy of Sciences and Arts

  • Z.Z. Djuric

    • Serbian Academy of Sciences and Arts

  • P.M. Nikolic

    • Serbian Academy of Sciences and Arts

  • Z. Chen

    • National High Magnetic Field Laboratory, Tallahassee

  • Z.Q. Li

    • National High Magnetic Field Laboratory, Tallahassee