Ultrafast semiconducting to metallic terahertz responses in the topological insulator Bi2Se3

Seungmin Lee, Sangwan Sim, Jisoo Moon, Soonyoung Cha, Ho Seung Shin, Soohyun Park, Woosun Jang, Myungwoo Son, Hyunseung Jung, Seung Young Seo, Aloysius Soon, Moon Ho Ham, Hojin Lee, Moon Ho Jo, Seongshik Oh, Hyunyong Choi

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

Abstract

We present the photoinduced terahertz responses of topological insulators Bi2Se3. The photoconductance sign is determined by the competition between the topological surface state and the bulk response in n-type, p-type and bulk-insulating Bi2Se3.

Original languageEnglish
Title of host publicationCLEO
Subtitle of host publicationQELS_Fundamental Science, CLEO_QELS 2018
PublisherOSA - The Optical Society
ISBN (Electronic)9781557528209
DOIs
Publication statusPublished - 2018
EventCLEO: QELS_Fundamental Science, CLEO_QELS 2018 - San Jose, United States
Duration: 2018 May 132018 May 18

Publication series

NameOptics InfoBase Conference Papers
VolumePart F93-CLEO_QELS 2018

Other

OtherCLEO: QELS_Fundamental Science, CLEO_QELS 2018
CountryUnited States
CitySan Jose
Period18/5/1318/5/18

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials

Fingerprint Dive into the research topics of 'Ultrafast semiconducting to metallic terahertz responses in the topological insulator Bi<sub>2</sub>Se<sub>3</sub>'. Together they form a unique fingerprint.

  • Cite this

    Lee, S., Sim, S., Moon, J., Cha, S., Shin, H. S., Park, S., Jang, W., Son, M., Jung, H., Seo, S. Y., Soon, A., Ham, M. H., Lee, H., Jo, M. H., Oh, S., & Choi, H. (2018). Ultrafast semiconducting to metallic terahertz responses in the topological insulator Bi2Se3 In CLEO: QELS_Fundamental Science, CLEO_QELS 2018 (Optics InfoBase Conference Papers; Vol. Part F93-CLEO_QELS 2018). OSA - The Optical Society. https://doi.org/10.1364/CLEO_QELS.2018.FF2D.4