JETP Letters

, Volume 101, Issue 8, pp 507–512 | Cite as

Role of anisotropy and spin-orbit interaction in the optical and dielectric properties of BiTeI and BiTeCl compounds

  • I. P. Rusinov
  • O. E. Tereshchenko
  • K. A. Kokh
  • A. R. Shakhmametova
  • I. A. Azarov
  • E. V. Chulkov
Optics and Laser Physics

Abstract

The dielectric and optical properties of semiconductor compounds BiTeI and BiTeCl have been studied theoretically within time dependent density functional theory and experimentally by spectral ellipsometry. Anisotropy of dielectric constants in the long-wavelength limit and dispersion of the σ and σ + π bulk plasmons in the longitudinal and transverse directions of the crystals have been discovered. It has been shown that the inclusion of the spin-orbit interaction is necessary for agreement between the theory and the results of optical measurements.

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Copyright information

© Pleiades Publishing, Inc. 2015

Authors and Affiliations

  • I. P. Rusinov
    • 1
    • 2
  • O. E. Tereshchenko
    • 2
    • 3
    • 4
  • K. A. Kokh
    • 2
    • 4
    • 5
  • A. R. Shakhmametova
    • 4
  • I. A. Azarov
    • 3
    • 4
  • E. V. Chulkov
    • 1
    • 2
    • 6
    • 7
  1. 1.Tomsk State UniversityTomskRussia
  2. 2.St. Petersburg State UniversitySt. PetersburgRussia
  3. 3.Rzhanov Institute of Semiconductor Physics, Siberian BranchRussian, Academy of SciencesNovosibirskRussia
  4. 4.Novosibirsk State UniversityNovosibirskRussia
  5. 5.Sobolev Institute of Geology and Mineralogy, Siberian BranchRussian Academy of SciencesNovosibirskRussia
  6. 6.Departamento de Fisica de Materiales UPV/EHUSan Sebastián, Basque CountrySpain
  7. 7.Centro de Fisica de Materiales CFM-MPCCentro Mixto CSIC-UPV/EHUSan Sebastian/Donostia, Basque CountrySpain

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