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

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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