Magnetocapacitance Effect and Magnetoelectric Coupling in Type-II Multiferroic HoFeWO<sub>6</sub>

ORAL

Abstract

We have studied the magnetocapacitance (MC) effect and magnetoelectric (ME) coupling in HoFeWO6, a type-II multiferroic with an onset of electric polarization and an antiferromagnetic (AFM) ordering at the Neel temperature (TN) of 17.8 K. With a polar structure at room temperature, our X-ray diffraction measurements did not show any structural phase transition across TN, consistent with our density functional theory calculations. Our X-ray absorption spectroscopy and X-ray magnetic circular dichroism revealed the valence state of 3+ for Fe and Ho cations and AFM ordering of Fe3+ spins in a non-collinear fashion with spins arranged 90 degrees with respect to each other. The compound exhibits MC effect with double-hysteresis loop behavior that is in direct correspondence with the magnetization. The observed MC effect and the change in polarization by the magnetic field, as well as their direct correspondence with magnetization, further support the strong ME coupling in this compound.

*The work is supported by US Air Force Office of Scientific Research Grant FA9550-15-1-0236 and FA9550-20-1-0068, the T. L. L. Temple Foundation, the John J. and Rebecca Moores Endowment, and the State of Texas through the Texas Center for Superconductivity at the University of Houston.

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Presenters

  • Moein Adnani Takantapeh

    • University of Houston
    • Texas Center for Superconductivity and Department of Physics, University of Houston

Authors

  • Moein Adnani Takantapeh

    • University of Houston
    • Texas Center for Superconductivity and Department of Physics, University of Houston

  • Melissa Gooch

    • University of Houston
    • TcSUH and Dept of Physics, University of Houston
    • Texas Center for Superconductivity and Department of Physics, University of Houston, Houston, TX 77204, USA
    • Texas Center for Superconductivity and Department of Physics, University of Houston

  • Liangzi Deng

    • University of Houston
    • Texas Center for Superconductivity, University of Houston
    • Texas Center for Superconductivity & Physics Department at University of Houston
    • University of Houston, Texas Center for Superconductivity
    • Texas Center of Superconductivity and Physics Department at the University of Houston
    • TcSUH and Dept of Physics, University of Houston
    • Texas Center for Superconductivity and Department of Physics, University of Houston, Houston, TX 77204, USA
    • Texas Center for Superconductivity and Department of Physics, University of Houston

  • Stefano Agrestini

    • Diamond Synchrotron Light Source
    • Diamond Light Source
    • Diamond Light Source, UK
    • ALBA Synchrotron Light Source

  • Javier Herrero-Martín

    • ALBA Synchrotron Light Source
    • Synchrotron ALBA

  • Hung-Cheng Wu

    • Natl Sun Yat Sen Univ
    • Texas Center for Superconductivity and Department of Physics, University of Houston

  • Chung-Kai Chang

    • National Synchrotron Radiation Research Center

  • Taha Salavati-fard

    • Texas Center for Superconductivity and William A. Brookshire Department of Chemical and Biomolecular Engineering, University of Houston

  • Narayan Poudel

    • Nuclear Materials Department, Idaho National Laboratory
    • Idaho National Laboratory
    • Idaho National Laboratory, Idaho Falls, Idaho 83415, USA
    • Texas Center for Superconductivity and Department of Physics, University of Houston

  • José Luis García-Muñoz

    • Institut de Ci`encia de Materials de Barcelona (ICMAB-CSIC), Campus Universitari de Bellaterra

  • Samira Daneshmandi

    • University of Houston
    • Texas Center for Superconductivity and Department of Physics, University of Houston

  • Zheng Wu

    • University of Houston
    • Texas Center for Superconductivity and Department of Physics, University of Houston, Houston, TX 77204, USA
    • Texas Center for Superconductivity and Department of Physics, University of Houston

  • Lars Grabow

    • Texas Center for Superconductivity and William A. Brookshire Department of Chemical and Biomolecular Engineering, University of Houston

  • Yen-Chung Lai

    • National Synchrotron Radiation Research Center

  • Hung-Duen Yang

    • Sun Yat-Sen University
    • Natl Sun Yat Sen Univ
    • Department of Physics and Center of Crystal Research, National Sun Yat-Sen University

  • Eric J Pellegrin

    • ALBA Synchrotron Light Source

  • Paul C. W. Chu

    • University of Houston
    • Texas Center for Superconductivity and Department of Physics, University of Houston, Houston, TX 77204, USA
    • Texas Center for Superconductivity and Department of Physics, University of Houston