Determination of the Energy Band Gap of Bi₂Se₃

Author

G. Martinez
B. A. Piot
M. Hakl
M. Potemski
Yew San Hor, Missouri University of Science and TechnologyFollow

Abstract

Despite intensive investigations of Bi₂Se₃ in past few years, the size and nature of the bulk energy band gap of this well-known 3D topological insulator still remain unclear. Here we report on a combined magneto-transport, photoluminescence and infrared transmission study of Bi₂Se₃, which unambiguously shows that the energy band gap of this material is direct and reaches E_g = (220 ± 5) meV at low temperatures.

Recommended Citation

G. Martinez et al., "Determination of the Energy Band Gap of Bi₂Se₃," Scientific Reports, vol. 7, no. 1, Nature Publishing Group, Jul 2017.

The definitive version is available at https://doi.org/10.1038/s41598-017-07211-x

Department(s)

Physics

Keywords and Phrases

Infrared Radiation; Low Temperature; Photoluminescence

International Standard Serial Number (ISSN)

2045-2322

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2017 Nature Publishing Group, All rights reserved.

Creative Commons Licensing

This work is licensed under a Creative Commons Attribution 4.0 License.

Publication Date

01 Jul 2017