Control over magnetic properties in bulk hybrid materials

ORAL

Abstract

We present control of coercivity and remanent magnetization of a bulk ferromagnetic material embedded in bulk vanadium sesquioxide (V2O3) by using a standard bulk synthesis procedure. The method generalizes the use of structural phase transitions of one material to control structural and magnetic properties of another. A structural phase transition (SPT) in the V2O3 host material causes magnetic properties of Ni to change as function of temperature. The remanent magnetization and the coercivity are reversibly controlled by the SPT without additional external magnetic fields. The reversible tuning shown here opens the pathway for controlling the properties of a vast variety of magnetic hybrid bulk systems.

*This Work is supported by the Office of Basic Energy Science, U.S. Department of Energy, BES-DMS funded by the Department of Energy’s Office of Basic Energy Science, DMR under grant DE FG02 87ER-45332.

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Authors

  • Christian Urban

    • University of California San Diego

  • Adrian Quesada

    • Instituto de Cerámica y Vidrio, CSIC, 28049, Madrid, Spain

  • Thomas Saerbeck

    • Institut Laue-Langevin, 71 Av. Des Martyrs, 38000 Grenoble, France

  • Miguel Angel de la Rubia

    • Instituto de Cerámica y Vidrio, CSIC, 28049, Madrid, Spain

  • Miguel Angel Garcia

    • Instituto de Cerámica y Vidrio, CSIC, 28049, Madrid, Spain

  • Jose Francisco Fernandez

    • Instituto de Cerámica y Vidrio, CSIC, 28049, Madrid, Spain

  • Ivan K. Schuller

    • Department of Physics and Center for Advanced Nanoscience, University of California San Diego
    • University of California San Diego
    • Dept. of Physics, Center for Advanced Nanoscience, Univ. of California
    • Univ California, San Diego