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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