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Ferromagnetic resonance in few-layered CrI<sub>3</sub> single crystals using magneto-Raman spectroscopy

ORAL

Abstract

We study in detail the structural and magnetic excitations of CrI3 in single crystalline thin flakes using inelastic light scattering in a magnetic field. We find that for fields above 6 T we observe the scattering from the zone center magnon, the ferromagnetic resonance, with a linear dependence on the magnetic field in this range. This behavior is well explained by the classical Kittel formula that predicts a value of the zero-field resonance at approximately 45 GHz with an effective g-factor of ~ 2. We also find that as a function of the scattered polarization angle with respect to the incoming polarization, the intensity has a two-fold symmetric pattern without nodes (i.e. the signal does not vanish). We will discuss the possible reasons for this behavior and compare it to that expected for the lattice excitations for the expected magnetic point group symmetry.

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Presenters

  • Rolando Valdes Aguilar

    Ohio State Univ - Columbus, Ohio State Univ, Physics, The Ohio State University, Ohio State University, Department of Physics, The Ohio State University

Authors

  • Rolando Valdes Aguilar

    Ohio State Univ - Columbus, Ohio State Univ, Physics, The Ohio State University, Ohio State University, Department of Physics, The Ohio State University

  • Amber McCreary

    National Institute of Standards and Technology, NIST

  • Thuc Mai

    Ohio State Univ - Columbus, NIST

  • Franz G Utermohlen

    Ohio State Univ - Columbus

  • Jeffrey Simpson

    Towson Univ, Towson University, Physics, Towson University, Department of Physics, Towson University

  • Kevin Garrity

    National Institute of Standards and Technology, MML, NIST, Materials Measurement Lab, National Institute of Standards and Technology, NIST

  • Xiaozhou Feng

    Ohio State Univ - Columbus

  • Dmitry Shcherbakov

    Ohio State University, Ohio State Univ - Columbus

  • Yanglin Zhu

    Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA, Physics, The Pennsylvania State University, Department of Physics, Pennsylvania State University, Pennsylvania State University, Penn State University, Physics, Penn State University, Pennsylvania state University

  • Jin Hu

    Univ of Arkansas-Fayetteville, Physics, Univ of Arkansas-Fayetteville, University of Arkansas

  • Daniel Weber

    Ohio State University, Ohio State Univ - Columbus

  • Kenji Watanabe

    National Institute for Materials Science, Japan, National Institute for Material Science, National Institute for Materials Science, National Institute for Materials Science, Tsukuba, Research Center for Functional Materials, NIMS, nims, Advanced Materials Laboratory, National Institute for Materials Science, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan, NIMS, National Institute for Material Science - Japan, NIMS Tsukuba, National Institute for Materials Science, Namiki 1-1, Ibaraki 305-0044, Japan., National Institute for Materials Science (NIMS), National Institute for Materials Science,Tsukuba, Ibaraki 305-0047, Japan, Advanced Materials Laboratory, NIMS, Japan, National Institute for Materials Science,1-1 Namiki, Tsukuba, 305-0044, Japan, National Institute of Materials Science, National Institute for Materials Science, University of Tsukuba, National Institute for Materials Science, Tsukuba, Japan, National Institute for Material Science, Japan, National Institue for Material Science, Tsukuba, Advanced Materials Laboratory, NIMS, Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba 305-0044, Japan, Advanced Matrials Lab, NIMS, National Institute for Material Science, Tsukuba, Japan, National institute for materials science, NIMS-Tsukuba, NIMS, Japan, National Institute for Materials Science, Namiki Tsukuba Ibaraki, Japan, NIRM, Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Japan, NIMS Japan, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan, Research Center for Functional Materials, National Institute for Materials Science, Tsukuba, Ibaraki, Japan, Advanced Materials Laboratory, National Institute of Materials Science, Advanced Materials Laboratory, National Institute for Materials Science 1-1 Namiki, Tsukuba, 305-0044, Japan, National Institute of Material Science, 1-1 Namiki, Tsukuba 305-0044, Japan, National Institute for Material Science (Japan), Physics, NIMS, National Institute of Materials Science, Japan, National Institute of Materials Science (NIMS), National Institute of Materials Science, Tsukuba, Ibaraki 305-0044, Japan, NIMS - Tsukuba

  • Takashi Taniguchi

    National Institute for Materials Science, Japan, National Institute for Material Science, National Institute for Materials Science, National Institute for Materials Science, Tsukuba, Research Center for Functional Materials, NIMS, nims, Advanced Materials Laboratory, National Institute for Materials Science, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan, NIMS, National Institute for Material Science - Japan, NIMS Tsukuba, National Institute for Materials Science, Namiki 1-1, Ibaraki 305-0044, Japan., National Institute for Materials Science (NIMS), National Institute for Materials Science,Tsukuba, Ibaraki 305-0047, Japan, Advanced Materials Laboratory, NIMS, Japan, National Institute for Materials Science,1-1 Namiki, Tsukuba, 305-0044, Japan, National Institute of Materials Science, National Institute for Materials Science, University of Tsukuba, National Institute for Materials Science, Tsukuba, Japan, National Institue for Material Science, Tsukuba, Advanced Materials Laboratory, NIMS, Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba 305-0044, Japan, Advanced Matrials Lab, NIMS, National Institute for Material Science, Tsukuba, Japan, National institute for materials science, NIMS-Tsukuba, NIMS, Japan, National Institute for Materials Science, Namiki Tsukuba Ibaraki, Japan, Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Japan, NIMS Japan, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan, Research Center for Functional Materials, National Institute for Materials Science, Tsukuba, Ibaraki, Japan, Advanced Materials Laboratory, National Institute of Materials Science, Advanced Materials Laboratory, National Institute for Materials Science 1-1 Namiki, Tsukuba, 305-0044, Japan, National Institute of Material Science, 1-1 Namiki, Tsukuba 305-0044, Japan, National Institute for Material Science (Japan), Physics, NIMS, National Institute of Materials Science, Japan, National Institute of Materials Science, Tsukuba, Ibaraki 305-0044, Japan, NIMS - Tsukuba

  • Joshua Goldberger

    Ohio State Univ - Columbus, Ohio State University, Chemistry, The Ohio State University

  • Zhiqiang Mao

    Pennsylvania State University, Tulane University, Physics, Pennsylvania State University, Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA, Physics, The Pennsylvania State University, Department of Physics, Pennsylvania State University, Penn State University, Physics, Penn State University, The Pennsylvania State University

  • Chun Ning Lau

    Ohio State University, Department of Physics, The Ohio State University, Deparment of Physics, The Ohio State University, Ohio State Univ - Columbus

  • Yuan-Ming Lu

    Ohio State Univ - Columbus

  • Nandini Trivedi

    Department of Physics, Ohio State Univ - Columbus, Physics, The Ohio State University, The Ohio State University, Ohio State Univ Columbus, Ohio State University, Ohio State Univ - Columbus, Physics, Ohio State University

  • Angela Hight Walker

    National Institute of Standards and Technology, NIST, National Institute of Standards and Technology (NIST)