Element-resolved electronic and magnetic properties of Sr$_{3}$(Ru$_{1-x}$Mn$_{x})_{2}$O$_{7}$

ORAL

Abstract

Bulk Sr$_{3}$Ru$_{2}$O$_{7}$ is a metal with short-range antiferromagnetic correlation developed at low temperatures. In the Sr$_{3}$(Ru$_{1-x}$Mn$_{x})_{2}$O$_{7}$ series, the partial substitution of Ru by Mn changes both electronic and magnetic correlations driven by the modification of lattice degree of freedom. We have employed polarized x-rays to perform an element-resolved study of electronic and magnetic properties of this system with 0 $<$ x $\le $ 0.5. Our results indicate that at low doping Mn goes in as an electron acceptor (i.e. Mn 3+) which effectively dopes holes into the Ru system in a systematic way with increasing x. Using x-ray magnetic circular dichroism we have extracted the Mn and Ru contributions to the total magnetic moment, which will be connected to measurements of the total moment.

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Authors

  • V.B. Nascimento

    • Louisiana State University, Baton Rouge LA
    • Dept. of Physics, Louisiana State University, Baton Rouge, LA 70802, USA

  • J.W. Freeland

    • Argonne National Laboratory
    • APS - Argonne National Laboratory, Argonne IL
    • Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA

  • Biao Hu

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

  • 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

  • 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