Piezochromism in the magnetic chalcogenide MnPS3

ORAL

Abstract

We bring together diamond anvil cell techniques, optical spectroscopy, and first principles electronic structure calculations to reveal the piezochromic properties of MnPS3. Color changes (green - red - black) take place with pressure as the charge gap systematically redshifts across the visible regime and into the near infrared, moving toward closure at the rate of 0.05 eV/GPa. Strikingly, this extrapolated value for potential band gap closure (55 GPa) corresponds to the theoretically-predicted crossover to the dimerized phase.

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Presenters

  • Nathan Harms

    University of Tennessee

Authors

  • Nathan Harms

    University of Tennessee

  • Heung Sik Kim

    Rutgers University, New Brunswick, Department of Physics and Astronomy, Rutgers University

  • Kenneth R O'Neal

    University of Tennessee

  • Amanda Clune

    University of Tennessee

  • Amanda Haglund

    University of Tennessee

  • David George Mandrus

    Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, USA, University of Tennessee-Knoxville, Oak Ridge National Lab, Department of Materials Science and Engineering, University of Tennessee, University of Tennessee (Knoxville, USA), Department of Materials Science and Engineering, University of Tennessee Knoxville, Department of Material Science & Engineering, University of Tennessee, Material Science and Engineering, University of Tennessee, Materials Science and Technology, Materials Science and Technology, University of Tennessee, Knoxville, Department of Materials Science and Engineering, The University of Tennessee, Materials Science and Engineering, The University of Tennessee, Oak Ridge National Laboratory, Department of Material Science and Engineering, University of Tennessee

  • Zhenxian Liu

    Brookhaven National Laboratory, C&EE Department, George Washington University, George Washington University, Brookhaven National Lab

  • David Vanderbilt

    Rutgers University, New Brunswick, Department of Physics and Astronomy, Rutgers University, Department of Physics and Astronomy, Rutgers University, Piscataway, NJ-08854, USA, Physics and Astronomy, Rutgers University, New Brunswick, Department of Physics and Astronomy, Rutgers University, New Jersey, Rutgers University, USA, Rutgers Univ, Physics and Astronomy, Rutgers University, Piscataway, NJ, United States, Department of Physics and Astronomy, Rutgers University, Piscataway, NJ, USA

  • Janice Lynn Musfeldt

    Univ of Tennessee, Knoxville, Department of Physics and Astronomy, Department of Chemistry, University of Tennessee, University of Tennessee