Observations of antiferromagnetic, antiferroelectric and ferroelastic orderings in honeycomb-lattice Mn<sub>2</sub>V<sub>2</sub>O<sub>7</sub>

ORAL

Abstract

The dielectric and magnetic anomalies were observed in Mn2V2O7 between 275 K and 300 K. Isothermal capacitance-stress hysteresis loop measurements along with crystallographic Aizu notation supported a martensitic phase transition (TM) driven ferroelastic behavior near room temperature. Another dielectric anomaly was also observed near the long-range antiferromagnetic (AFM) ordering temperature (TN ~ 16.4 K) along with noticeable magnetodielectric (MD) coupling below TN, signifying the multiferroic nature of Mn2V2O7. With increasing pressure, the antiferromagnetic ordering (TN) greatly increased, while the (TM) was suppressed. Taking all of these comprehensive research findings into account, we suggest that Mn2V2O7 is a unique multifunctional material with the coexistence of antiferromagnetic, antiferroelectric and ferroelastic orderings.

*MOST:106-2112-M-110 -013 -MY3

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Presenters

  • Hung-Cheng Wu

    • Physics, National Sun Yat-sen University
    • Texas Center for Superconductivity and Department of Physics, University of Houston, Houston, TX 77204, USA
    • Texas Center for Superconductivity, University of Houston
    • Department of Physics, National Sun Yat-sen University
    • Department of Physics, National Sun Yat-sen University, Kaohsiung 804, Taiwan
    • Natl Sun Yat Sen Univ
    • Texas Center for Superconductivity and Physics Department at the Univ of Houston

Authors

  • Hung-Cheng Wu

    • Physics, National Sun Yat-sen University
    • Texas Center for Superconductivity and Department of Physics, University of Houston, Houston, TX 77204, USA
    • Texas Center for Superconductivity, University of Houston
    • Department of Physics, National Sun Yat-sen University
    • Department of Physics, National Sun Yat-sen University, Kaohsiung 804, Taiwan
    • Natl Sun Yat Sen Univ
    • Texas Center for Superconductivity and Physics Department at the Univ of Houston

  • Dong-Jie Hsieh

    • Department of Physics, National Sun Yat-sen University

  • Tsung-Wen Yen

    • Department of Physics, National Sun Yat-sen University

  • Po-Jung Sun

    • Department of Physics, National Sun Yat-sen University

  • D. Chandrasekhar Kakarla

    • Department of Physics, National Sun Yat-sen University
    • Department of Physics, National Sun Yat-sen University, Kaohsiung 804, Taiwan
    • Natl Sun Yat Sen Univ

  • Jim-Long Her

    • Division of Natural Science, Center for General Education, Chang Gung University

  • Y. H. Matsuda

    • University of Tokyo
    • Univ. of Tokyo
    • Institute for Solid State Physics, University of Tokyo

  • Chung-Kai Chang

    • National Synchrotron Radiation Research Center, Hsinchu, 30076, Taiwan
    • National Synchrotron Radiation Research Center, Taiwan
    • National Synchrotron Radiation Research Center
    • National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan

  • Yu-Chun Chuang

    • National Synchrotron Radiation Research Center
    • National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan

  • Yen-Chung Lai

    • National Synchrotron Radiation Research Center, Taiwan
    • National Synchrotron Radiation Research Center

  • Melissa Gooch

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

  • Liangzi Deng

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

  • Kyle Grant Webber

    • Department of Materials Science and Engineering, Friedrich-Alexander Universität Erlangen-Nürnberg

  • Ching (Paul) W Chu

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