Observation of cyclotron anti-resonance in topological insulator Bi2Te3.
ORAL
Abstract
We report on the experimental observation of a cyclotron
anti-resonance in a canonical 3D topological insulator
Bi2Te3. Magneto-reflectance response of bulk Bi2Te3 was
studied in 18 Tesla magnetic field, and contrary to other
topological insulators studied before, an anti-resonance is
observed in the spectra. Based on the analysis of the data we
propose that the anti-resonance is the result of different coupling
of charge carriers to left and right circularly polarized light.
anti-resonance in a canonical 3D topological insulator
Bi2Te3. Magneto-reflectance response of bulk Bi2Te3 was
studied in 18 Tesla magnetic field, and contrary to other
topological insulators studied before, an anti-resonance is
observed in the spectra. Based on the analysis of the data we
propose that the anti-resonance is the result of different coupling
of charge carriers to left and right circularly polarized light.
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Presenters
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Sasa Dordevic
Univ of Akron
Authors
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Sasa Dordevic
Univ of Akron
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Hechang Lei
Renmin University, Brookhaven National Laboratory, Brookhaven Natl Lab, Brookhaven National Lab
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Cedomir Petrovic
Brookhaven National Laboratory, Brookhaven Natl Lab, Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA, Brookhaven National Lab
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Jonathan Ludwig
NHMFL, Natl High Magnetic Field Lab
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Dmitry Smirnov
1800 East Paul Dirac Drive, Natl High Magnetic Field Lab, Natl High Magnetic Field Lab, National High Magnetic Field Laboratory, NHMFL, Condensed Matter Science, National High Magnetic Field Laboratory, NHMFL, FSU