Optical spectroscopy and Fermi surface studies of BiTeCl and BiTeBr

ORAL

Abstract

The observation of a large bulk Rashba effect in the non-centrosymmetric semiconductors BiTeX(X=Cl, Br, I) has stimulated the interest in these sys- tems, as promising candidates for studying spin related phenomena and for the realization of spin devices. Here we present a comparative study of the electronic properties of BiTeCl and BiTeBr, determined from temperature dependent infrared spectroscopy and Shubnikov-de Haas oscillations. In par- ticular, we compare the angle dependence of quantum oscillations between the two compounds and discuss possible differences between the topology of their Fermi surfaces.

*Supported by NSF Cooperative Agreement DMR-1157490 to the National High Magnetic Field Laboratory

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Authors

  • Catalin Martin

    • Ramapo College of New Jersey

  • A.V. Suslov

    • National High Magnetic Field Laboratory, Tallahassee, FL, 32310

  • S. Buvaev

    • University of Florida, Gainesville, Florida, 32611, USA

  • A.F. Hebard

    • University of Florida, Gainesville, Florida, 32611, USA

  • Philippe Bugnon

    • Crystal Growth Facility, Ecole Polytechnique Federale de Lausanne, Switzerland

  • Helmuth Berger

    • Crystal Growth Facility, Ecole Polytechnique Federale de Lausanne, Switzerland

  • Arnaud Magrez

    • Crystal Growth Facility, Ecole Polytechnique Federale de Lausanne, Switzerland

  • D.B. Tanner

    • University of Florida, Gainesville, Florida, 32611, USA