Demystifying the growth of superconducting Sr2RuO4 thin films

Hari P. Nair; Jacob P. Ruf; Nathaniel J. Schreiber; Ludi Miao; Morgan L. Grandon; David J. Baek; Berit H. Goodge; Jacob P. C. Ruff; Lena F. Kourkoutis; Kyle M. Shen; Darrell G. Schlom

doi:10.1063/1.5053084

APL Materials (Oct 2018)

Demystifying the growth of superconducting Sr2RuO4 thin films

Hari P. Nair,
Jacob P. Ruf,
Nathaniel J. Schreiber,
Ludi Miao,
Morgan L. Grandon,
David J. Baek,
Berit H. Goodge,
Jacob P. C. Ruff,
Lena F. Kourkoutis,
Kyle M. Shen,
Darrell G. Schlom

Affiliations

Hari P. Nair: Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, USA
Jacob P. Ruf: Department of Physics, Cornell University, Ithaca, New York 14853, USA
Nathaniel J. Schreiber: Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, USA
Ludi Miao: Department of Physics, Cornell University, Ithaca, New York 14853, USA
Morgan L. Grandon: Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, USA
David J. Baek: School of Electrical and Computer Engineering, Cornell University, Ithaca, New York 14853, USA
Berit H. Goodge: School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA
Jacob P. C. Ruff: Cornell High Energy Synchrotron Source, Cornell University, Ithaca, New York 14853, USA
Lena F. Kourkoutis: School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA
Kyle M. Shen: Department of Physics, Cornell University, Ithaca, New York 14853, USA
Darrell G. Schlom: Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, USA

DOI: https://doi.org/10.1063/1.5053084
Journal volume & issue: Vol. 6, no. 10
pp. 101108 – 101108-8

Abstract

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We report the growth of superconducting Sr2RuO4 thin films by molecular-beam epitaxy on (110) NdGaO3 substrates with transition temperatures of up to 1.8 K. We calculate and experimentally validate a thermodynamic growth window for the adsorption-controlled growth of superconducting Sr2RuO4 epitaxial thin films. The growth window for achieving superconducting Sr2RuO4 thin films is narrow in growth temperature, oxidant pressure, and ruthenium-to-strontium flux ratio.

Published in APL Materials

ISSN: 2166-532X (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Technology: Chemical technology: Biotechnology; Science: Physics
Website: http://aplmaterials.aip.org

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