Dynamics in Multiferroic Skyrmion GaV4S8

ORAL

Abstract

GaV4S8 is a rare example of a material hosting a multiferroic Neel-type Skyrmion [1]. We have grown 91 mg single crystals of this material and explored the field/temperature phase diagram using Small Angle Neutron Scattering (SANS) as a probe. We have also investigated the dynamics of the skyrmion phase. In this study, we apply a static field along the [111] crystallographic direction. We also apply a modulated magnetic field along this direction and observe time tagged events on our detector to observe the time dependence. In this talk, we will discuss our results in the context of recent AC susceptibility measurements [2].

References: [1] I. Kézsmárki et al., Nature Materials 14, 1116 (2015)
[2] Ádám Butykai et al., Phys. Rev. B 96, 104430 (2017)

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Presenters

  • William Ratcliff

    NIST Center for Neutron Research, National Institute of Standards and Technology, National Institute of Standards and Technology, NIST Center for neutron research, National Institute of Standard and Technology, Gaithersburg, MD, NIST

Authors

  • William Ratcliff

    NIST Center for Neutron Research, National Institute of Standards and Technology, National Institute of Standards and Technology, NIST Center for neutron research, National Institute of Standard and Technology, Gaithersburg, MD, NIST

  • Jeffrey W Lynn

    National Institute of Standards and Technology, NIST, NIST Center for Neutron Research, National Institute of Standards and Technology, NIST Center for neutron research, National Institute of Standard and Technology, Gaithersburg, MD

  • Markus Bleuel

    National Institute of Standards and Technology, Center for Neutron Research, National Institute of Standards and Technology

  • Lunyong zhang

    Laboratory for Pohang Emergent Materials and Max Plank POSTECH Center for Complex Phase Materials, Pohang University of Science and Technology

  • Sang-Wook Cheong

    Rutgers University, Department of Physics and Astronomy, Rutgers University, Rutgers University, New Brunswick, Rutgers Center for Emergent Materials and Department of Physics & Astronomy, Rutgers University, Center for Quantum Materials Synthesis and Department of Physics and Astronomy, Rutgers, the State University of New Jersey, Department of Physics, Rutgers University, Rutgers Center for Emergent Materials and Department of Physics and Astronomy, Rutgers University, Piscataway, NJ, Department of Physics and Astronomy, Rutgers University, Piscataway, NJ 08854, USA, Physics, Rutgers University, Physics and Astronomy, Rutgers University, New Brunswick, Department of Physics and Astronomy, Rutgers University, New Jersey, Rutgers University, Physics and Astronomy, and Laboratory for Pohang Emergent Materials and Max Plank POSTECH Center for Complex Phase Materials, Pohang University of Science, RCEM, Department of Physics and Astronomy, Rutgers U., Rutgers Center for Emergent Materials and Department of Physics and Astronomy, Rutgers University, Department of Physics and Astronomy, 136 Frelinghuysen Road, Piscataway, New Jersey 08854, USA, Rutgers Center for Emergent Materials