• DocumentCode
    644604
  • Title

    Plasmonic excitations in Bi2Se3 topological insulator

  • Author

    Di Pietro, P. ; Ortolani, Michele ; Limaj, O. ; Di Gaspare, Alessandra ; Giliberti, Valeria ; Giorgianni, F. ; Brahlek, Matthew ; Bansal, N. ; Koirala, Nikesh ; Oh, Sung-Min ; Calvani, P. ; Lupi, S.

  • Author_Institution
    Dipt. di Fis., Univ. di Roma La Sapienza, Rome, Italy
  • fYear
    2013
  • fDate
    1-6 Sept. 2013
  • Firstpage
    1
  • Lastpage
    2
  • Abstract
    We first report evidence by using terahertz (THz) spectroscopy of plasmonic excitations in a topological insulator (TI) that was engineered in thin micro-ribbon arrays. Plasmons are due to Dirac quasi-particles of the two-dimensional electron gas which forms at the surface of TIs.
  • Keywords
    bismuth compounds; plasmonics; plasmons; terahertz wave spectra; topological insulators; two-dimensional electron gas; Bi2Se3; Dirac quasiparticles; micro-ribbon arrays; plasmonic excitations; terahertz spectroscopy; topological insulator; two-dimensional electron gas; Absorption; Dispersion; Graphene; MODFETs; Phonons; Plasmons; Topological insulators;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
  • Conference_Location
    Mainz
  • Type

    conf

  • DOI
    10.1109/IRMMW-THz.2013.6665572
  • Filename
    6665572
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=644604