Magnon-phonon hybridization in the quasi-2D antiferromagnet MnPSe<sub>3</sub>

ORAL

Abstract

Magnetic excitations in van der Waals (vdW) materials, especially in the two-dimensional (2D) limit, is an interesting research topic from both the fundamental and application perspectives. In MnPSe3, a vdW material that could potentially host 2D antiferromagnetism (AFM), we identify the hybridization of two-magnon excitations with two separate Eg phonons using temperature-dependent magneto-Raman spectroscopy. We construct a model that reproduces our observations and demonstrates that the phonons and two-magnon excitations are hybridized in the magnetically ordered state. We also systematically study the overall Raman scattering intensity enhancement in the AFM phase. Our experimental and theoretical results points the the cause of spin-ordering-induced resonant Raman scattering effect in MnPSe3.

*This work was supported in part by The Ohio State University Institute for Materials Research and the Center for Emergent Materials (CEM), an NSF MRSEC under grant DMR – 2011876

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Presenters

  • Thuc Mai

    • National Institute of Standards and Technology
    • National Institute of Standards & Technology
    • 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

  • Amber McCreary

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

  • Nhan V Nguyen

    • Physical Measurement Laboratory, National Institute of Standards and Technology

  • Josh Argo

    • Materials Science and Engineering, The Ohio State University

  • Jeffrey Simpson

    • Towson University
    • Towson Univ
    • Physics, Astronomy, and Geosciences, Towson University

  • Vicky Doan-Nguyen

    • Materials Science and Engineering, The Ohio State University

  • Rolando Valdes Aguilar

    • The Ohio State University
    • Physics, The Ohio State University
    • Ohio State Univ - Columbus

  • Angela Hight Walker

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