Direct visualization of domain dynamics in Ni<sub>2</sub>MnTeO<sub>6</sub> antiferromagnet using X-ray Bragg diffraction Phase contrast Imaging.

ORAL

Abstract

Magnetic phase transitions provide one of the important testbeds in condensed matter physics. Development of the magnetic domains lies at the heart of any such transitions. Generally, antiferromagnetic (AFM) domains can evolve with temperature, through the phase transition from the paramagnetic phase to the ordered state, or between states with different AFM orders. However, the study of such dynamics of AFM domain was impossible due to the lack of temporal resolution in the existing techniques. Using recently developed X-ray Bragg diffraction Phase contrast Imaging (XBPI) technique that can visualize AFM domains and domain walls in real-time and real-space, we present the growth and merging of the AFM domains in real-time as a function of temperature in Ni2MnTeO6 where two AFM states with different Q vectors exist.

*Work at the Rutgers University was supported by the U.S. Department of Energy (DOE) under Grant No. DOE: DEFG02-07ER46382.

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Presenters

  • Min Gyu Kim

    • Rutgers University, Piscataway

Authors

  • Min Gyu Kim

    • Rutgers University, Piscataway

  • Sungkyun Choi

    • Rutgers University, Piscataway
    • Department of Physics and Astronomy, Rutgers University, New Brunswick
    • Rutgers University

  • Hu Miao

    • Brookhaven national lab
    • Brookhaven National Lab.
    • Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory

  • Choongjae Won

    • Pohang University of Science and Technology
    • Center for Complex Phase Materials, Max Planck POSTECH/Korea Research Initiative

  • Junjie Yang

    • Physics, New Jersey Institute of Technology
    • Department of Physics, New Jersey Institute of Technology
    • New Jersey Institute of Technology
    • Physics, Central Michigan University
    • Central Michigan University

  • Wen Hu

    • Brookhaven National Laboratory
    • Brookhaven National Lab.

  • Claudio Mazzoli

    • Brookhaven National Laboratory
    • Brookhaven National Lab.

  • Sang-Wook Cheong

    • Rutgers University
    • R-CEM & Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854, USA
    • Rutgers Center for Emergent Materials, Rutgers University
    • Department of Physics and Astronomy, Center for Emergent Materials, Rutgers University; Max Planck POSTECH/Korea Research Initiative, Pohang University of Science and Technol
    • Physics and Astronomy, Rutgers University
    • Rutgers University, Physics and Astronomy, and Laboratory for Pohang Emergent Materials and Max Plank POSTECH Center for Complex Phase Materials, Pohang University of Science
    • Rutgers Center for Emergent Materials and Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854, USA
    • Rutgers University, Piscataway
    • Department of Physics and Astronomy, Rutgers University, New Brunswick
    • Department of Physics and Astronomy, Rutgers University
    • Department of Physics, Rutgers University
    • Physics & Astronomy, Rutgers University
    • Rutgers Center for Emergent Materials and Department of Physics and Astronomy, Rutgers University
    • Rutgers University, New Brunswick
    • Physics, Rutgers University
    • Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854, USA

  • Andi Barbour

    • Brookhaven National Laboratory
    • NSLS-II, Brookhaven National Laboratory
    • Brookhaven National Lab.

  • Stuart B Wilkins

    • Brookhaven National Laboratory
    • Brookhaven National Lab.

  • Ian Keith Robinson

    • Brookhaven National Lab.

  • Mark Dean

    • Brookhaven national lab
    • Brookhaven National Lab.
    • Brookhaven National Laboratory

  • Valery Kiryukhin

    • Rutgers University
    • Rutgers University, Piscataway
    • Department of Physics and Astronomy, Rutgers University, New Brunswick