Terahertz spectroscopy of topological insulator Sb2Se3 and its ultrafast nonequilibrium carrier dynamics

Jaehun Park, Tae Hyeon Kim, Kwangsik Jeong, Hyejin Choi, Seonghoon Jung, Mann Ho Cho

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Tuning the band structure of a topological insulator is of interest for developing electronic devices or superconducting devices. Here we report the strain-dependent results for Bi2Se3 films of various thicknesses that are grown via a self-organized ordering process. From the UV photoemission/inverse photoemission spectroscopy (UPS/IPES) results, ab initio calculations and THz-TDS data, significant changes of the Fermi level and band gap were observed.

Original languageEnglish
Title of host publication41st International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2016
PublisherIEEE Computer Society
ISBN (Electronic)9781467384858
DOIs
Publication statusPublished - 2016 Nov 28
Event41st International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2016 - Copenhagen, Denmark
Duration: 2016 Sep 252016 Sep 30

Publication series

NameInternational Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
Volume2016-November
ISSN (Print)2162-2027
ISSN (Electronic)2162-2035

Other

Other41st International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2016
CountryDenmark
CityCopenhagen
Period16/9/2516/9/30

Fingerprint

Superconducting devices
Terahertz spectroscopy
Photoemission
Photoelectron spectroscopy
Fermi level
Band structure
Energy gap
Tuning

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

Park, J., Kim, T. H., Jeong, K., Choi, H., Jung, S., & Cho, M. H. (2016). Terahertz spectroscopy of topological insulator Sb2Se3 and its ultrafast nonequilibrium carrier dynamics. In 41st International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2016 [7758796] (International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz; Vol. 2016-November). IEEE Computer Society. https://doi.org/10.1109/IRMMW-THz.2016.7758796
Park, Jaehun ; Kim, Tae Hyeon ; Jeong, Kwangsik ; Choi, Hyejin ; Jung, Seonghoon ; Cho, Mann Ho. / Terahertz spectroscopy of topological insulator Sb2Se3 and its ultrafast nonequilibrium carrier dynamics. 41st International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2016. IEEE Computer Society, 2016. (International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz).
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author = "Jaehun Park and Kim, {Tae Hyeon} and Kwangsik Jeong and Hyejin Choi and Seonghoon Jung and Cho, {Mann Ho}",
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Park, J, Kim, TH, Jeong, K, Choi, H, Jung, S & Cho, MH 2016, Terahertz spectroscopy of topological insulator Sb2Se3 and its ultrafast nonequilibrium carrier dynamics. in 41st International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2016., 7758796, International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz, vol. 2016-November, IEEE Computer Society, 41st International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2016, Copenhagen, Denmark, 16/9/25. https://doi.org/10.1109/IRMMW-THz.2016.7758796

Terahertz spectroscopy of topological insulator Sb2Se3 and its ultrafast nonequilibrium carrier dynamics. / Park, Jaehun; Kim, Tae Hyeon; Jeong, Kwangsik; Choi, Hyejin; Jung, Seonghoon; Cho, Mann Ho.

41st International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2016. IEEE Computer Society, 2016. 7758796 (International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz; Vol. 2016-November).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Park J, Kim TH, Jeong K, Choi H, Jung S, Cho MH. Terahertz spectroscopy of topological insulator Sb2Se3 and its ultrafast nonequilibrium carrier dynamics. In 41st International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2016. IEEE Computer Society. 2016. 7758796. (International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz). https://doi.org/10.1109/IRMMW-THz.2016.7758796