Tunable metamagnetic transitions in double-perovskite Eu$_{2}$CoMnO$_{6}$ single crystals

ORAL

Abstract

Double perovskite single crystals of Eu$_{2}$CoMnO$_{6}$ were first synthesized using flux method and their magnetic properties were investigated. Magnetic field dependence of magnetization reveals a metamagnetic transition in as-grown crystals. Controlling valences of magnetic ions in different gas annealing conditions leads to the complete change of shapes and locations of metamagnetic transitions in the isothermal magnetization. This remarkable variation originates from the formation of magnetic clusters with different valences of magnetic ions.

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Authors

  • Hwan Young Choi

    • Yonsei University, South Korea
    • Yonsei Univ

  • Nara Lee

    • Yonsei Univ

  • M.S. Seo

    • Division of Materials Science, Korea Basic Science Institute, Daejeon 305-806, South Korea

  • S.Y. Park

    • Division of Materials Science, Korea Basic Science Institute, Daejeon 305-806, South Korea

  • Y.J. Jo

    • Department of Physics, Kyungpook National University, Daegu 702-701, South Korea

  • Y.J. Choi

    • Yonsei Univ