• DocumentCode
    3691401
  • Title

    Terahertz probing of surface electron states in topological crystalline insulators Pb1−xSnxSe

  • Author

    Svetlana G. Egorova;Vladimir I. Chernichkin;Ludmila I. Ryabova;Evgeny P. Skipetrov;Lada V. Yashina;Sergey N. Danilov;Sergey D. Ganichev;Dmitry R. Khokhlov

  • Author_Institution
    Physics Department, M.V. Lomonosov Moscow State University, Moscow, 119991 Russia
  • fYear
    2015
  • Firstpage
    1
  • Lastpage
    1
  • Abstract
    We suggest a method for detection of highly conductive surface electron states including topological ones. The method is based on measurements of the photoelectromagnetic effect using terahertz laser pulses. In contrast to conventional transport measurements, the method is not sensitive to the bulk conductivity. The method is demonstrated on an example of topological crystalline insulators Pb1-xSnxSe. It is shown that highly conductive surface electron states are present in Pb1-xSnxSe both in the inverse and direct electron energy spectrum.
  • Keywords
    "Insulators","Magnetic fields","Conductivity","Optical surface waves","Surface treatment","Electron mobility","Conductivity measurement"
  • Publisher
    ieee
  • Conference_Titel
    Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2015 40th International Conference on
  • ISSN
    2162-2027
  • Electronic_ISBN
    2162-2035
  • Type

    conf

  • DOI
    10.1109/IRMMW-THz.2015.7327554
  • Filename
    7327554
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3691401