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