Enhancement of Thermal Conductivity Across the Metal-Insulator Transition in Vanadium Dioxide

ORAL

Abstract

The metal-to-insulator transition (MIT) in vanadium dioxide (VO2) is investigated by electrical and thermal transport measurements. We report an order-of-magnitude enhancement of thermal conductivity across the MIT region in the VO2 single crystal. Magnetic field dependent measurements reveal that the thermal conductivity peak doesn't show an obvious dependence on the magnetic field, which indicates that the enhancement of thermal conductivity could come from neutral heat carriers such as phonons. Our experiment explores a potential direction for achieving thermal management in phase-change materials.

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Presenters

  • Lu Chen

    Physics, University of Michigan, Department of Physics, University of Michigan, University of Michigan

Authors

  • Lu Chen

    Physics, University of Michigan, Department of Physics, University of Michigan, University of Michigan

  • Ziji Xiang

    Physics, University of Michigan, Department of Physics, University of Michigan, University of Michigan

  • Colin Tinsman

    Physics, University of Michigan, Department of Physics, University of Michigan, University of Michigan

  • Tomoya Asaba

    Physics, University of Michigan, MPA-CMMS, Los Alamos National Laboratory, Department of Physics, University of Michigan, University of Michigan, Los Alamos National Laboratory

  • Qing Huang

    Department of Physics and Astronomy, University of Tennessee, Department of Physics and Astronomy, The University of Tennessee, Knoxville, Department of Physics and Astronomy, University of Tennessee, Knoxville

  • Haidong Zhou

    University of Tennessee, Department of Physics and Astronomy, University of Tennessee, University of Tennessee, Knoxville, Physics, University of Tennessee, Knoxville, TN, United States, Physics, University of Tennessee, Department of Physics and Astronomy, The University of Tennessee, Knoxville, Department of Physics and Astronomy, University of Tennessee, Knoxville, Department of Physics, University of Tennessee

  • Lu Li

    University of Michigan, Physics, University of Michigan, Department of Physics, University of Michigan