Measurements of a novel magnetically induced structural phase in CoPS<sub>3</sub>

ORAL

Abstract

The MPX3 family (M - transition metal, P - phosphorus, X - sulfur or selenium) of magnetic van der Waals (vdW) materials has the potential to realize antiferromagnetism in the 2D limit. In CoPS3, a vdW material with antiferromagnetic ordering around 130 K, we perform magneto-Raman spectroscopy, magnetometry, calorimetric, and X-ray diffraction as a function temperature to reveal a new magnetically induced structural phase transition. This behavior is reminiscent to the case of FePS3, where subtle structural changes occurs below the Neel temperature. We explore the implications of these data on the symmetries of this yet to identified phase with the additional help of density functional theory.

*Thuc Mai: NRC Fellowship from the National Academies of Science and Engineering
Ben Conner: NRC Fellowship from the National Academies of Science and Engineering
Michael Susner: AFOSR LRIR 19RXCOR052
Michael McGuire: DOE BES

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Presenters

  • Angela Hight Walker

    • National Institute of Standards and Technology
    • National Institute of Standards & Technology
    • NIST
    • Physical Measurement Laboratory, National Institute of Standards and Technology

Authors

  • Thuc Mai

    • National Institute of Standards and Technology
    • National Institute of Standards & Technology
    • Physical Measurement Laboratory, National Institute of Standards and Technology

  • Kevin Garrity

    • National Institute of Standards and Technology
    • National Institute of Standards & Technology
    • NIST
    • Materials Measurement Laboratory, National Institute of Standards and Technology

  • Michael Susner

    • Air Force Research Laboratory
    • Air Force Research Lab - WPAFB

  • Benjamin S Conner

    • Air Force Research Laboratory
    • Air Force Research Lab - WPAFB

  • Amber McCreary

    • National Institute of Standards and Technology
    • National Institute of Standards & Technology
    • Physical Measurement Laboratory, National Institute of Standards and Technology

  • Michael A McGuire

    • Materials Science and Technology Division, Oak Ridge National Laboratory
    • Oak Ridge National Lab
    • Oak Ridge National Laboratory

  • Angela Hight Walker

    • National Institute of Standards and Technology
    • National Institute of Standards & Technology
    • NIST
    • Physical Measurement Laboratory, National Institute of Standards and Technology