Temperature dependent study of magnetization dynamics in CrCl<sub>3</sub> – a layered antiferromagnet

ORAL

Abstract

Chromium trichloride (CrCl3) is a layered antiferromagnet. Recently it has found renewed interest due to its antiferromagnetic resonance in GHz frequencies, two-dimensional (2D) layered structure with low cleavage energy and complex magnetization dynamics [1]. We report a detailed study of magnetization dynamics of bulk CrCl3 placed on a coplanar waveguide (CPW) as a function of temperature. We observe prominent ferromagnetic, antiferromagnetic and paramagnetic resonances depending on temperature and in-plane magnetic field. We also observe magnon-magnon coupling and presence of multiple spin-wave modes by introducing an additional out-of-plane magnetic field by tilting the sample with respect to magnetic field direction. We extract useful system parameters and study their dependence on temperature and angle of tilting by fitting to experimental data. Ability to easily exfoliate 2D layers of CrCl3 opens up possibility of coupling it to CPW resonators and application in antiferromagnetic spintronics and hybrid quantum systems.

Reference:
[1] D. MacNeill, J.T. Hou, D.R. Klein, P. Zhang, P. Jarillo-Herrero, and L. Liu, Phys. Rev. Lett. 123, 047204 (2019).

*We acknowledge funding support from Department of Atomic Energy and Department of Science and Technology of India.

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Presenters

  • SUPRIYA MANDAL

    • Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research (TIFR)

Authors

  • SUPRIYA MANDAL

    • Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research (TIFR)

  • Lucky N. Kapoor

    • Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research (TIFR)

  • Soham Manni

    • Department of Physics, Indian Institute of Technology (IIT) Palakkad

  • Meghan P. Patankar

    • Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research (TIFR)
    • Tata Inst of Fundamental Res
    • DCMP&MS, Tata Institute of Fundamental Research, Mumbai

  • A. Thamizhavel

    • Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research (TIFR)
    • Condensed matter physics and Material science, Tata Institute of Fundamental Research
    • Tata Institute of Fundamental Research (TIFR)
    • Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research, Mumbai

  • Mandar M Deshmukh

    • Tata Institute of Fundamental Research (TIFR)
    • Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research (TIFR)