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Synthesizing SmB6 single crystals by various techniques

ORAL

Abstract

Samarium Hexaboride (SmB6), a mixed valence Kondo insulator, has attracted much recent attention due to the discovery of a low temperature conducting surface state, proposed to be a topologically protected surface state that arises due to the formation of a Topological Kondo insulator state. To date, single crystals of SmB6 have only been synthesized by ‘aluminum flux’ and ‘floating zone’ methods, mainly due to the high melting point of boron. Recently, quantum oscillations were observed in the both type of crystals, but intrinsic origins of those findings are controversial due to possible extrinsic origins such as aluminum inclusions. Therefore, growing single crystals using alternative methods is considered important for elucidating the intrinsic electronic properties of SmB6. We will discuss efforts to produce SmB6 single crystals by radiofrequency (RF) technique and by flux growth methods using alternative fluxes, comparing the results of various techniques.

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Presenters

  • Shanta Saha

    Maryland Quantum Materials Center, Department of Physics, University of Maryland College Park, University of Maryland, College Park, Department of Physics, University of Maryland, College Park

Authors

  • Shanta Saha

    Maryland Quantum Materials Center, Department of Physics, University of Maryland College Park, University of Maryland, College Park, Department of Physics, University of Maryland, College Park

  • Lucas William

    MagLab Tallahassee

  • Wesley T Fuhrman

    Maryland Quantum Materials Center, Department of Physics, University of Maryland College Park, University of Maryland, College Park, Center for Quantum Materials, University of Maryland

  • Yun Suk Eo

    University of Maryland, College Park, Center for Nanophysics and Advanced Materials, University of Maryland, Maryland Quantum Materials Center, Department of Physics, University of Maryland College Park, Center for Quantum Materials, University of Maryland

  • Ryan Baumbach

    National High Magnetic Field Laboratory/Florida State University, MagLab Tallahassee, National High Magnetic Field Laboratory, National High Magnetic Field Lab, Florida State University, Florida State Univ, Natl High Magnetic Field Lab, National High Magnetic Field Laboratory, Florida State University, Physics, NHMFL, Florida State University

  • Johnpierre Paglione

    University of Maryland, College Park, Physics Department, University of Maryland, Maryland Quantum Materials Center, Department of Physics, University of Maryland College Park, Department of Physics, University of Maryland, College Park, University of Maryland, College Park & NIST, Univ of Maryland-Colege Park, Center for Quantum Materials, University of Maryland, Maryland Quantum Materials Center, Department of Physics, University of Maryland-College Park,College Park, Maryland 20742