Mn-Induced Structural and Physical Property Modifications in Sr<sub>4</sub>(Ru<sub>1-<i>x</i></sub>Mn<i><sub>x</sub></i>)<sub>3</sub>O<sub>10</sub>

ORAL

Abstract

Triple-layered Sr4Ru3O10 is a unique ferromagnetic system with the central RuO6 layer behaving differently from two outer layers both crystallographically and magnetically. We report that the partial substitution of Ru by smaller Mn gives rise to modifications in crystal structure, and electronic and magnetic properties of Sr4(Ru1-xMnx)3O10. Through the single crystal x-ray diffraction refinement, we find that (Ru/Mn)O6 octahedral rotation is reduced with increasing x and becomes undetectable at x ≥ 0.23, making the system changing from the orthorhombic to tetragonal structure. The magnetization measurement indicates the ferromagnetic transition temperature TC decreases from 105 K (x = 0) to 70 K for x = 0.41, with the reduced average magnetic moment as well. What is remarkable is that Mn doping induces magnetic anisotropy change from the easy c axis in x = 0 to the easy ab plane in x = 0.41. Such change also removes the ab-plane metamagnetic transition observed in x = 0. Furthermore, the electrical resistivity increases with increasing x showing semiconducting behavior for x = 0.41. We discuss our results in the context of strong spin-charge-lattice-orbital interaction.

*This work was supported by DOE through grant DE-SC0016315.

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Presenters

  • Lingyi Xing

    • Department of Physics and Astronomy, Louisiana State University
    • Department of Physics & astronomy, Louisiana state University

Authors

  • Lingyi Xing

    • Department of Physics and Astronomy, Louisiana State University
    • Department of Physics & astronomy, Louisiana state University

  • Xin Gui

    • Department of Chemistry, Louisiana State University
    • Louisiana State Univ - Baton Rouge
    • Department of Chemistry, Louisiana state University

  • Weiwei Xie

    • Department of Chemistry, Louisiana State University
    • Louisiana State Univ - Baton Rouge
    • Louisiana State Univ
    • Department of Chemistry, Louisiana state University
    • Chemistry, Lousiana State University
    • Department of Physics and Astronomy, Louisiana State Univ - Baton Rouge

  • Huibo Cao

    • Neutron Scattering Division, Oak Ridge National Laboratory
    • Oak Ridge National Laboratory
    • Quantum Condensed Matter Division, Oak Ridge National Laboratory
    • Neutron Sciences Directorate, Oak Ridge National Laboratory
    • Neutron Scattering Division, Oak Ridge National Lab
    • Oak Ridge National Lab
    • Oak Ridge Natl Lab
    • Quantum Condensed Matter Division , Oak Ridge National Laboratory

  • Jiaqiang Yan

    • Materials Science and Technology Division, Oak Ridge National Laboratory
    • Oak Ridge National Lab
    • Oak Ridge National Laboratory
    • Ames Laboratory, Iowa State University

  • Brian Sales

    • Materials Science and Technology Division, Oak Ridge National Laboratory
    • Oak Ridge National Lab
    • Oak Ridge National Laborotary
    • Oak Ridge National Laboratory

  • Rongying Jin

    • Department of Physics and Astronomy, Louisiana State University
    • Physics and Astronomy, Louisiana State Univ - Baton Rouge
    • Department of Physcis and Astronomy, Louisiana State University
    • Department of Physics & astronomy, Louisiana state University
    • Department of Physics, Louisiana State University
    • Louisiana State Univ - Baton Rouge
    • Physics and Astronomy, Louisiana State University
    • Physics, Louisiana State Univ
    • Department of Physics and Astronomy,, Louisiana State Univ - Baton Rouge