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