Cyclotron antiresonance in the topological insulator Bi2Te3 studied in Voigt geometry

ORAL

Abstract

We have previously observed cyclotron antiresonance in a canonical 3D topological insulator Bi2Te3 in Faraday geometry. We now
supplement those results with the recent measurements in Voigt geometry. Antiresonance is also present in this geometry, but an additional absorption feature is also detected, whose origin is currently unknown. Possible explanation of these effects will be discussed within the model which uses an unconventional form of the Lorentz force that external magnetic field exerts on charge carriers.

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Presenters

  • Sasa Dordevic

    The University of Akron

Authors

  • Sasa Dordevic

    The University of Akron

  • Hechang Lei

    Physics Department, Renmin University of China, Brookhaven National Laboratory, Renmin University of China, Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory

  • Cedomir Petrovic

    CMPMS, Brookhaven National Laboratory, Brookhaven National Laboratory, CMPMSD, Brookhaven National Laboratory, Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory

  • Seongphill Moon

    Natl High Magnetic Field Lab, National High Magnetic Field Laboratory

  • Dmitry Smirnov

    National High Magnetic Field Laboratory, Natl High Magnetic Field Lab, National High Magnetic Field Lab, Condensed Matter Science, National High Magnetic Field Laboratory