Atomic scale investigation of a PbTiO3/SrRuO3/DyScO3 heterostructure

R. Egoavil; H. Tan; J. Verbeeck; S. Bals; B.F. Smith; Bouwe Kuiper; Augustinus J.H.M. Rijnders; Gertjan Koster; G. van Tendeloo

doi:10.1063/1.4809597

Atomic scale investigation of a PbTiO3/SrRuO3/DyScO3 heterostructure

R. Egoavil, H. Tan, J. Verbeeck, S. Bals, B.F. Smith, Bouwe Kuiper, Augustinus J.H.M. Rijnders, Gertjan Koster, G. van Tendeloo

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Abstract

An epitaxial PbTiO3 thin film grown on self-organized crystalline SrRuO3 nanowires deposited on a DyScO3 substrate with ordered DyO and ScO2 chemical terminations is investigated by transmission electron microscopy. In this PbTiO3/SrRuO3/DyScO3 heterostructure, the SrRuO3 nanowires are assumed to grow on only one type of substrate termination. Here, we report on the structure, morphology, and chemical composition analysis of this heterostructure. Electron energy loss spectroscopy reveals the exact termination sequence in this complex structure. The energy loss near-edge structure of the Ti–L2,3, Sc–L2,3, and O K edges shows intrinsic interfacial electronic reconstruction. Furthermore, PbTiO3 domain walls are observed to start at the end of the nanowires resulting in atomic steps on the film surface

Original language	Undefined
Article number	223106
Pages (from-to)	-
Number of pages	5
Journal	Applied physics letters
Volume	102
Issue number	22
DOIs	https://doi.org/10.1063/1.4809597
Publication status	Published - 2013

Keywords

IR-89739
METIS-296548

Access to Document

10.1063/1.4809597

Cite this

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title = "Atomic scale investigation of a PbTiO3/SrRuO3/DyScO3 heterostructure",

abstract = "An epitaxial PbTiO3 thin film grown on self-organized crystalline SrRuO3 nanowires deposited on a DyScO3 substrate with ordered DyO and ScO2 chemical terminations is investigated by transmission electron microscopy. In this PbTiO3/SrRuO3/DyScO3 heterostructure, the SrRuO3 nanowires are assumed to grow on only one type of substrate termination. Here, we report on the structure, morphology, and chemical composition analysis of this heterostructure. Electron energy loss spectroscopy reveals the exact termination sequence in this complex structure. The energy loss near-edge structure of the Ti–L2,3, Sc–L2,3, and O K edges shows intrinsic interfacial electronic reconstruction. Furthermore, PbTiO3 domain walls are observed to start at the end of the nanowires resulting in atomic steps on the film surface",

keywords = "IR-89739, METIS-296548",

author = "R. Egoavil and H. Tan and J. Verbeeck and S. Bals and B.F. Smith and Bouwe Kuiper and Rijnders, {Augustinus J.H.M.} and Gertjan Koster and {van Tendeloo}, G.",

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doi = "10.1063/1.4809597",

language = "Undefined",

volume = "102",

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journal = "Applied physics letters",

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TY - JOUR

T1 - Atomic scale investigation of a PbTiO3/SrRuO3/DyScO3 heterostructure

AU - Egoavil, R.

AU - Tan, H.

AU - Verbeeck, J.

AU - Bals, S.

AU - Smith, B.F.

AU - Kuiper, Bouwe

AU - Rijnders, Augustinus J.H.M.

AU - Koster, Gertjan

AU - van Tendeloo, G.

PY - 2013

Y1 - 2013

N2 - An epitaxial PbTiO3 thin film grown on self-organized crystalline SrRuO3 nanowires deposited on a DyScO3 substrate with ordered DyO and ScO2 chemical terminations is investigated by transmission electron microscopy. In this PbTiO3/SrRuO3/DyScO3 heterostructure, the SrRuO3 nanowires are assumed to grow on only one type of substrate termination. Here, we report on the structure, morphology, and chemical composition analysis of this heterostructure. Electron energy loss spectroscopy reveals the exact termination sequence in this complex structure. The energy loss near-edge structure of the Ti–L2,3, Sc–L2,3, and O K edges shows intrinsic interfacial electronic reconstruction. Furthermore, PbTiO3 domain walls are observed to start at the end of the nanowires resulting in atomic steps on the film surface

AB - An epitaxial PbTiO3 thin film grown on self-organized crystalline SrRuO3 nanowires deposited on a DyScO3 substrate with ordered DyO and ScO2 chemical terminations is investigated by transmission electron microscopy. In this PbTiO3/SrRuO3/DyScO3 heterostructure, the SrRuO3 nanowires are assumed to grow on only one type of substrate termination. Here, we report on the structure, morphology, and chemical composition analysis of this heterostructure. Electron energy loss spectroscopy reveals the exact termination sequence in this complex structure. The energy loss near-edge structure of the Ti–L2,3, Sc–L2,3, and O K edges shows intrinsic interfacial electronic reconstruction. Furthermore, PbTiO3 domain walls are observed to start at the end of the nanowires resulting in atomic steps on the film surface

KW - IR-89739

KW - METIS-296548

U2 - 10.1063/1.4809597

DO - 10.1063/1.4809597

M3 - Article

SN - 0003-6951

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JO - Applied physics letters

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