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Bulk Band Gaps In Divalent Hexaborides: A Soft X-Ray Emission Study

Author

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  • J. D. DENLINGER

    (Advanced Light Source, Lawrence Berkeley National Lab, Berkeley, CA 94720, USA)

  • G.-H. GWEON

    (Randall Laboratory of Physics, University of Michigan, Ann Arbor, MI 48109-1120, USA)

  • J. W. ALLEN

    (Randall Laboratory of Physics, University of Michigan, Ann Arbor, MI 48109-1120, USA)

  • A. D. BIANCHI

    (National High Magnetic Field Lab, Florida State University Tallahassee, FL 32306, USA)

  • Z. FISK

    (National High Magnetic Field Lab, Florida State University Tallahassee, FL 32306, USA)

Abstract

Boron K-edge soft X-ray emission and absorption are used to address the fundamental question of whether divalent hexaborides are intrinsic semimetals or defect-doped band gap insulators. These bulk-sensitive measurements, complementary and consistent with surface-sensitive angle-resolved photoemission experiments, confirm the existence of a bulk band gap and the location of the chemical potential at the bottom of the conduction band.

Suggested Citation

  • J. D. Denlinger & G.-H. Gweon & J. W. Allen & A. D. Bianchi & Z. Fisk, 2002. "Bulk Band Gaps In Divalent Hexaborides: A Soft X-Ray Emission Study," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 9(02), pages 1309-1313.
    • Handle: RePEc:wsi:srlxxx:v:09:y:2002:i:02:n:s0218625x0200372x
    DOI: 10.1142/S0218625X0200372X
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    Cited by:

    1. Thorben Petersen & Pritam Bhattacharyya & Ulrich K. Rößler & Liviu Hozoi, 2023. "Resonating holes vs molecular spin-orbit coupled states in group-5 lacunar spinels," Nature Communications, Nature, vol. 14(1), pages 1-5, December.

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