Influence of symmetry mismatch on heteroepitaxial growth of perovskite thin films

D. L. Proffit; H. W. Jang; S. Lee; C. T. Nelson; X. Q. Pan; M. S. Rzchowski; C. B. Eom

doi:10.1063/1.2979237

Influence of symmetry mismatch on heteroepitaxial growth of perovskite thin films

D. L. Proffit
, H. W. Jang
, S. Lee
, C. T. Nelson
, X. Q. Pan
, M. S. Rzchowski
, C. B. Eom

Research output: Contribution to journal › Article › peer-review

42 Scopus citations

Abstract

Epitaxial thin films of (110) orthorhombic CaRuO₃ grown on orthorhombic (110) NdGaO₃ and cubic (001) (LaAlO₃) _0.3-(Sr₂AlTaO₆) 0.7 (LSAT) substrates serve as a model system isolating the influence of oxygen octahedron distortion on epitaxial growth of thin films. CaRuO₃ grows as a coherent single crystal on NdGaO₃ with an atomically smooth surface, whereas CaRuO₃ on LSAT is multidomain with a rough surface despite the equivalent film stoichoimetry and average lattice mismatch between CaRuO ₃ and the substrates. Anisotropic metallic resistivity of the single crystal CaRuO₃ was observed at 10 K with different electrical behaviors as a function of temperature for [1̄10] and [001] in-plane directions.

Original language	English
Article number	111912
Journal	Applied Physics Letters
Volume	93
Issue number	11
DOIs	https://doi.org/10.1063/1.2979237
State	Published - 2008
Externally published	Yes

Funding

The authors gratefully acknowledge the financial support of the National Science Foundation through Grant No. ECCS-0708759, Department of Energy through Grant No. DE-FG02-06ER46346, and David Lucile Packard Fellowship (CBE).

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10.1063/1.2979237

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title = "Influence of symmetry mismatch on heteroepitaxial growth of perovskite thin films",

abstract = "Epitaxial thin films of (110) orthorhombic CaRuO3 grown on orthorhombic (110) NdGaO3 and cubic (001) (LaAlO3) 0.3-(Sr2AlTaO6) 0.7 (LSAT) substrates serve as a model system isolating the influence of oxygen octahedron distortion on epitaxial growth of thin films. CaRuO3 grows as a coherent single crystal on NdGaO3 with an atomically smooth surface, whereas CaRuO3 on LSAT is multidomain with a rough surface despite the equivalent film stoichoimetry and average lattice mismatch between CaRuO 3 and the substrates. Anisotropic metallic resistivity of the single crystal CaRuO3 was observed at 10 K with different electrical behaviors as a function of temperature for [{\=1}10] and [001] in-plane directions.",

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year = "2008",

doi = "10.1063/1.2979237",

language = "English",

volume = "93",

journal = "Applied Physics Letters",

issn = "0003-6951",

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T1 - Influence of symmetry mismatch on heteroepitaxial growth of perovskite thin films

AU - Proffit, D. L.

AU - Jang, H. W.

AU - Lee, S.

AU - Nelson, C. T.

AU - Pan, X. Q.

AU - Rzchowski, M. S.

AU - Eom, C. B.

PY - 2008

Y1 - 2008

N2 - Epitaxial thin films of (110) orthorhombic CaRuO3 grown on orthorhombic (110) NdGaO3 and cubic (001) (LaAlO3) 0.3-(Sr2AlTaO6) 0.7 (LSAT) substrates serve as a model system isolating the influence of oxygen octahedron distortion on epitaxial growth of thin films. CaRuO3 grows as a coherent single crystal on NdGaO3 with an atomically smooth surface, whereas CaRuO3 on LSAT is multidomain with a rough surface despite the equivalent film stoichoimetry and average lattice mismatch between CaRuO 3 and the substrates. Anisotropic metallic resistivity of the single crystal CaRuO3 was observed at 10 K with different electrical behaviors as a function of temperature for [1̄10] and [001] in-plane directions.

AB - Epitaxial thin films of (110) orthorhombic CaRuO3 grown on orthorhombic (110) NdGaO3 and cubic (001) (LaAlO3) 0.3-(Sr2AlTaO6) 0.7 (LSAT) substrates serve as a model system isolating the influence of oxygen octahedron distortion on epitaxial growth of thin films. CaRuO3 grows as a coherent single crystal on NdGaO3 with an atomically smooth surface, whereas CaRuO3 on LSAT is multidomain with a rough surface despite the equivalent film stoichoimetry and average lattice mismatch between CaRuO 3 and the substrates. Anisotropic metallic resistivity of the single crystal CaRuO3 was observed at 10 K with different electrical behaviors as a function of temperature for [1̄10] and [001] in-plane directions.

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DO - 10.1063/1.2979237

M3 - Article

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VL - 93

JO - Applied Physics Letters

JF - Applied Physics Letters

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ER -

Influence of symmetry mismatch on heteroepitaxial growth of perovskite thin films

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