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CaMn<sub>2</sub>O<sub>4-</sub><sub>d</sub> a possible multiferroic candidate, an annealing study

ORAL

Abstract

Over the last few years, manganese oxides have experienced a considerable increase in research interests due to their rich and complex phase diagrams, resulting from the flexibility of the manganese ions oxidations states. Ca-Mn-O is an excellent example, whose rich phase diagram also contains phases that have been theoretically predicted to be multiferroic. While many of the phases have been well investigated, CaMn2O4 to date is still not well understood and a hopeful candidate.
Polycrystalline samples were synthesized and annealed with two different growth environments to investigate the effect of oxygen deficiencies further. Therefore, argon as well as oxygen gas flows were utilized. Magnetization, heat capacity measurements, as well as dielectric and loss measurements will be discussed.

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Presenters

  • 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

Authors

  • 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

  • Hung-Cheng Wu

    Natl Sun Yat Sen Univ, 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

  • 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

  • Ching W Chu

    Texas Center for Superconductivity & Physics Department at University of Houston, Texas Center for Superconductivity, 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