Phase diagram of the spinel system Fe$_{1+x}$Cr$_{2-x}$O$_{4}$ (0 $\leq x \leq$ 1)

ORAL

Abstract

Here, we report the resistivity, specific heat, and the susceptibility of the series of polycrystalline spinel Fe$_{1+x}$Cr$_{2-x}$O$_{4}$ with 0 $\leq x \leq$ 1. The study shows that as the degree of inversion (x) increases, the magnetic transition temperature increases while the resistivity decreases in general. This demonstrates the intricate relationship between the magnetic interaction and the transport properties. Comparison to the previously studied normal vanadate spinel AV$_{2}$O$_{4}$ is also presented.

*This work is supported by NSF-DMR 0654118 and the State of Florida. A. Kiswandhi is supported in part by NSF-DMR 1005293

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Authors

  • Andhika Kiswandhi

    • Natl High Magnetic Field Lab

  • James Brooks

    • NHMFL,FSU
    • National High Magnetic Field Laboratory
    • Natl High Magnetic Field Lab

  • H.D. Zhou

    • University of Tennessee and National High Magnetic Field Laboratory, Florida State University
    • University of Tennessee - Knoxville
    • Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee, 37996
    • Department of Physics and Astronomy, University of Tennessee
    • University of Tennessee
    • Department of Physics and Astronomy, University of Tennessee - Knoxville
    • University of Tennessee, TN, USA