Molecular beam epitaxy growth of superconducting Sr2RuO4 films

We report the growth of superconducting Sr2RuO4 films by oxide molecular beam epitaxy (MBE). Careful tuning of the Ru flux with an electron beam evaporator enables us to optimize growth conditions including the Ru/Sr flux ratio and also to investigate stoichiometry effects on the structural and tran...

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Main Authors: M. Uchida, M. Ide, H. Watanabe, K. S. Takahashi, Y. Tokura, M. Kawasaki
Format: Article
Language:English
Published: AIP Publishing LLC 2017-10-01
Series:APL Materials
Online Access:http://dx.doi.org/10.1063/1.5007342
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author M. Uchida
M. Ide
H. Watanabe
K. S. Takahashi
Y. Tokura
M. Kawasaki
author_facet M. Uchida
M. Ide
H. Watanabe
K. S. Takahashi
Y. Tokura
M. Kawasaki
author_sort M. Uchida
collection DOAJ
description We report the growth of superconducting Sr2RuO4 films by oxide molecular beam epitaxy (MBE). Careful tuning of the Ru flux with an electron beam evaporator enables us to optimize growth conditions including the Ru/Sr flux ratio and also to investigate stoichiometry effects on the structural and transport properties. The highest onset transition temperature of about 1.1 K is observed for films grown in a slightly Ru-rich flux condition in order to suppress Ru deficiency. The realization of superconducting Sr2RuO4 films via oxide MBE opens up a new route to study the unconventional superconductivity of this material.
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spelling doaj.art-7c23781cba4e4b63b4b25656c72b64a72022-12-21T18:19:30ZengAIP Publishing LLCAPL Materials2166-532X2017-10-01510106108106108-510.1063/1.5007342008710APMMolecular beam epitaxy growth of superconducting Sr2RuO4 filmsM. Uchida0M. Ide1H. Watanabe2K. S. Takahashi3Y. Tokura4M. Kawasaki5Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, JapanDepartment of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, JapanDepartment of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, JapanRIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, JapanDepartment of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, JapanDepartment of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, JapanWe report the growth of superconducting Sr2RuO4 films by oxide molecular beam epitaxy (MBE). Careful tuning of the Ru flux with an electron beam evaporator enables us to optimize growth conditions including the Ru/Sr flux ratio and also to investigate stoichiometry effects on the structural and transport properties. The highest onset transition temperature of about 1.1 K is observed for films grown in a slightly Ru-rich flux condition in order to suppress Ru deficiency. The realization of superconducting Sr2RuO4 films via oxide MBE opens up a new route to study the unconventional superconductivity of this material.http://dx.doi.org/10.1063/1.5007342
spellingShingle M. Uchida
M. Ide
H. Watanabe
K. S. Takahashi
Y. Tokura
M. Kawasaki
Molecular beam epitaxy growth of superconducting Sr2RuO4 films
APL Materials
title Molecular beam epitaxy growth of superconducting Sr2RuO4 films
title_full Molecular beam epitaxy growth of superconducting Sr2RuO4 films
title_fullStr Molecular beam epitaxy growth of superconducting Sr2RuO4 films
title_full_unstemmed Molecular beam epitaxy growth of superconducting Sr2RuO4 films
title_short Molecular beam epitaxy growth of superconducting Sr2RuO4 films
title_sort molecular beam epitaxy growth of superconducting sr2ruo4 films
url http://dx.doi.org/10.1063/1.5007342
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