Growth and Characterization of Heterostructures of Ferromagnetic SrRuO<sub>3</sub> and Superconducting Sr<sub>2</sub>RuO<sub>4</sub> by Molecular-Beam Epitaxy

ORAL

Abstract

Sr2RuO4 single crystals have been shown to exhibit unconventional superconductivity with a Tc of 1.5 K. Our group recently reported a thermodynamic growth window for Srn+1RunO3n+1 thin films, including the demonstration of the reproducible growth of high-RRR Sr2RuO4 and SrRuO3 thin films. The growth of Sr2RuO4 thin films and the recent 17O NMR results on single crystals offer an opportunity for the growth of Sr2RuO4-based heterostructures, in order to perform measurements to determine the superconducting order parameter. In this talk, we describe the growth of SrRuO3/Sr2RuO4 heterostructures using oxide molecular-beam epitaxy. We characterize the crystallinity and structure of these heterostructures using X-ray diffraction, X-ray reflectivity, and scanning transmission electron microscopy, and finally we present magnetometry and electrical resistivity measurements on these heterostructures.

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Presenters

  • Nathaniel Schreiber

    • Cornell University
    • Department of Materials Science and Engineering, Cornell University
    • Department of Materials Science and Engineering, Kavli Institute at Cornell for Nanoscale Science, Cornell University

Authors

  • Nathaniel Schreiber

    • Cornell University
    • Department of Materials Science and Engineering, Cornell University
    • Department of Materials Science and Engineering, Kavli Institute at Cornell for Nanoscale Science, Cornell University

  • Hari Nair

    • Cornell University
    • Department of Materials Science and Engineering, Kavli Institute at Cornell for Nanoscale Science, Cornell University

  • Jacob Ruf

    • Cornell University
    • Laboratory of Atomic and Solid State Physics, Department of Physics, Kavli Institute at Cornell for Nanoscale Science, Cornell University

  • Ludi Miao

    • Cornell University
    • Laboratory of Atomic and Solid State Physics, Department of Physics, Kavli Institute at Cornell for Nanoscale Science, Cornell University
    • Laboratory of Atomic and Solid State Physics, Cornell University

  • Berit Goodge

    • Cornell University
    • Applied and Engineering Physics, Cornell University

  • lena Kourkoutis

    • Cornell University
    • Applied and Engineering Physics, Cornell University

  • Kyle M Shen

    • Cornell University
    • Department of Physics, Cornell University, Cornell University
    • Department of Physics, Laboratory of Atomic and Solid State Physics, Cornell University
    • Laboratory of Atomic and Solid State Physics, Department of Physics, Kavli Institute at Cornell for Nanoscale Science, Cornell University

  • Darrell Schlom

    • Cornell University
    • Department of Materials Science and Engineering, Cornell University
    • Department of Materials Science and Engineering, Kavli Institute at Cornell for Nanoscale Science, Cornell University
    • Materials Science and Engineering, Cornell University
    • Kavli Institute at Cornell for Nanoscale Science, Ithaca, New York 14853, USA
    • Platform for the Accelerated Realization, Analysis, & Discovery of Interface Materials (PARADIM), Cornell University