Intrinsic ferromagnetism in quasi two-dimensional chromium telluride nanoplates

ORAL

Abstract

The recent demonstration of ferromagnetic order in atomically thin crystals has opened many new opportunities to study two-dimensional (2D) magnetism for novel spintronic applications. Most of the 2D magnets realized so far are van der Waals materials. In this talk, we report on the chemical vapor deposition and magnetic studies of thin nanoplates of chromium telluride, a layered magnetic material with a non-van der Waals structure. Bulk magnetization and magneto-optic Kerr effect (MOKE) measurements demonstrate a ferromagnetic order below a Tc of ~ 180 K and a strong magnetic anisotropy with an easy axis along the c-axis. We will discuss how the magnetic properties are influenced by the nanoplate thickness based on MOKE measurement of individual nanoplates. We will also discuss in detail the aging effect at ambient conditions, one of the major challenges of 2D magnets with regards to practical applications.

*This work is supported in part by NSF DMR-1506460, DMR-1760668 and ECCS-1936406

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Presenters

  • Amanda Coughlin

    • Department of Physics, Indiana University - Bloomington

Authors

  • Amanda Coughlin

    • Department of Physics, Indiana University - Bloomington

  • Yue Yao

    • University of Utah
    • Department of Physics and Astronomy, University of Utah

  • Zhipeng Ye

    • Department of Electrical and Computer Engineering, Texas Tech University
    • Texas Tech University
    • Texas Tech Univ

  • Hua Guo

    • Department of Materials Science and NanoEngineering, Rice University
    • Materials Science, Rice Univ
    • Rice University

  • Yaroslav Losovyj

    • Department of Chemistry, Indiana University - Bloomington

  • Herbert Fertig

    • Indiana Univ - Bloomington
    • Department of Physics, Indiana University - Bloomington
    • Physics, Indiana university Bloomington

  • Jun Lou

    • Department of Materials Science and NanoEngineering, Rice University

  • Rui He

    • Department of Electrical and Computer Engineering, Texas Tech University
    • Texas Tech University
    • Texas Tech Univ

  • Yan Li

    • University of Utah
    • Department of Physics and Astronomy, University of Utah

  • Shixiong Zhang

    • Indiana Univ - Bloomington
    • Department of Physics, Indiana University - Bloomington