Nuclear Magnetic Resonance Studies of Bulk States of Bi2Se3

ORAL

Abstract

We present $^{209}$Bi nuclear magnetic resonance (NMR) spectra and relaxation rate data on single crystals of Bi$_{2}$Se$_{3}$ grown under various conditions, whose carrier concentrations, resistivities, and Shubnikov-de Haas (SdH) frequencies have been measured. Our NMR data reveal properties of the bulk states, which are influenced by the presence of intrinsic carriers. We find that both the Knight shift and the electric field gradient of the Bi is correlated with carrier concentration, and atypical spectral profiles. Surprisingly, spin-lattice relaxation is not strongly temperature dependent.

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Authors

  • David Nisson

    University of California, Davis, Department of Physics, University of California at Davis

  • A.P. Dioguardi

    University of California, Davis, Department of Physics

  • P. Klavins

    University of California, Davis, Department of Physics

  • C.H. Lin

    University of California, Davis, Department of Physics

  • Kent Shirer

    University of California, Davis, Department of Physics, University of California - Davis, University of California at Davis

  • Abigail Shockley

    University of California, Davis, Department of Physics, University of California, Davis

  • John Crocker

    University of California, Davis, Department of Physics, University of California at Davis

  • Nicholas Curro

    University of California, Davis, Department of Physics, University of California at Davis