Correlation between Structural and Magnetic Properties in Sr$_{3}$(Ru$_{1-x}$Mn$_{x})_{2}$O$_{7}$ Single Crystals

ORAL

Abstract

We have studied the Mn-doping (x) dependence of structural and magnetic properties in Sr$_{3}$(Ru$_{1-x}$Mn$_{x})_{2}$O$_{7 }$. The system remains tetragonal as determined by single-crystal X-ray diffraction with the lattice parameters $a$ and $c$ varying with x. Correspondingly, the value of Jahn-Teller distortion ($\Delta _{JT})$ of (Ru,Mn)O$_{6}$ octahedron decreases with increasing x with $\Delta _{JT }$= 1.0 for x$\sim $0.5. At the same doping level, we note the sign change of Curie-Weiss temperature $\Theta _{CW}$ derived from high-temperature magnetic susceptibility. The correlation between structural and magnetic properties will be discussed.

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Authors

  • Biao Hu

    • Department of Physics and Astronomy, Louisiana State University
    • Louisiana State University, Baton Rouge LA

  • Gregory McCandless

    • Department of Chemistry, Louisiana State University
    • Louisiana State University

  • Ovidiu Garlea

    • Oak Ridge National Laboratory
    • NSSD-ORNL
    • Neutron Scattering Science Division, Oak Ridge National Laboratory
    • Oak Ridge Natl Lab

  • Shane Stadler

    • Department of Physics and Astronomy, Louisiana State University
    • Louisiana State University, USA
    • Louisiana State University

  • Ward Plummer

    • Louisiana State University, Baton Rouge, LA 70803, USA
    • Louisiana State University
    • Department of Physics and Astronomy, Louisiana State University
    • Louisiana State University, Baton Rouge LA
    • Depart. of Physics, Louisiana State University, Baton Rouge, LA 70802, USA

  • Rongying Jin

    • Louisiana State University
    • Louisiana State University, Baton Rouge, LA 70803, USA
    • Department of Physics and Astronomy, Louisiana State University
    • Louisiana State University, Baton Rouge LA
    • Louisiana State University, USA
    • Dept. of Physics, Louisiana State University, Baton Rouge, LA 70802, USA