Stabilization of Epitaxial α-Fe2O3 Thin Films Grown by Pulsed Laser Deposition on Oxide Substrates

6 pages, 5 figures

Detalles Bibliográficos
Autores: Serrano, Aida, Rubio-Zuazo, Juan, López-Sánchez, Jesús, Arnay, Iciar, Salas-Colera, Eduardo, Castro, Germán R.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2018
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/401856
Acceso en línea:http://hdl.handle.net/10261/401856
https://api.elsevier.com/content/abstract/scopus_id/85049243807
Access Level:acceso abierto
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spelling Stabilization of Epitaxial α-Fe2O3 Thin Films Grown by Pulsed Laser Deposition on Oxide SubstratesSerrano, AidaRubio-Zuazo, JuanLópez-Sánchez, JesúsArnay, IciarSalas-Colera, EduardoCastro, Germán R.6 pages, 5 figuresWe have grown epitaxial incommensurate α-Fe2O3 thin films on α-Al2O3(0001), SrTiO3(111), and LaAlO3(001) substrates, identifying hematite as single iron oxide phase stabilized. We demonstrate that a different lattice coupling behavior as a function of the selected oxide substrate mediates the epitaxial character. Single-oriented α-Fe2O3(0001) layers are obtained on α-Al2O3(0001) and SrTiO3(111) substrates, whereas on the LaAlO3(001) substrate, the hematite layer is found to grow along the r-plane to adapt its hexagonal lattice on the cubic lattice of the substrate, evidencing a single-oriented (11̅02) layer. In the film plane, crystallographic axes of α-Fe2O3(0001) are collinear with the α-Al2O3(0001) ones, while a rotation of 30° is found between those of α-Fe2O3(0001) and SrTiO3(111). On LaAlO3(001), α-Fe2O3(11̅02) adopts an in-plane orthorhombic structure rotated 45° respect to the substrate lattice. The crystallographic domain size and the crystalline order are dependent on the incommensurate lattice coupling mechanism. Larger values are obtained for layers grown on α-Al2O3(0001), while lower values correspond to the hematite deposited on LaAlO3(001). Moreover, an Fe–O elongation and Fe–Fe contraction of first neighbors distances as well as a dependency on surface flatness as a function of the substrate lattice parameter is also found.This work has been supported by the Ministerio Español de Economia, Industria y Competitividad (MINECO) and the Consejo Superior de Investigaciones Cientificas (CSIC) through the projects PIE-2010-OE-013-200014 and MAT2012-38045-C04-03. J.L.-S. thanks the FPI fellowship. The ESRF, MINECO, and CSIC are acknowledged for the provision of synchrotron radiation facilities.Peer reviewedAmerican Chemical SocietyMinisterio de Economía y Competitividad (España)Consejo Superior de Investigaciones Científicas (España)European Synchrotron Radiation FacilitySerrano, Aida [0000-0002-6162-0014]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252018info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttp://hdl.handle.net/10261/401856https://api.elsevier.com/content/abstract/scopus_id/85049243807reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO//MAT2012-38045-C04-03https://doi.org/10.1021/acs.jpcc.8b02430Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4018562026-05-22T06:33:51Z
dc.title.none.fl_str_mv Stabilization of Epitaxial α-Fe2O3 Thin Films Grown by Pulsed Laser Deposition on Oxide Substrates
title Stabilization of Epitaxial α-Fe2O3 Thin Films Grown by Pulsed Laser Deposition on Oxide Substrates
spellingShingle Stabilization of Epitaxial α-Fe2O3 Thin Films Grown by Pulsed Laser Deposition on Oxide Substrates
Serrano, Aida
title_short Stabilization of Epitaxial α-Fe2O3 Thin Films Grown by Pulsed Laser Deposition on Oxide Substrates
title_full Stabilization of Epitaxial α-Fe2O3 Thin Films Grown by Pulsed Laser Deposition on Oxide Substrates
title_fullStr Stabilization of Epitaxial α-Fe2O3 Thin Films Grown by Pulsed Laser Deposition on Oxide Substrates
title_full_unstemmed Stabilization of Epitaxial α-Fe2O3 Thin Films Grown by Pulsed Laser Deposition on Oxide Substrates
title_sort Stabilization of Epitaxial α-Fe2O3 Thin Films Grown by Pulsed Laser Deposition on Oxide Substrates
dc.creator.none.fl_str_mv Serrano, Aida
Rubio-Zuazo, Juan
López-Sánchez, Jesús
Arnay, Iciar
Salas-Colera, Eduardo
Castro, Germán R.
author Serrano, Aida
author_facet Serrano, Aida
Rubio-Zuazo, Juan
López-Sánchez, Jesús
Arnay, Iciar
Salas-Colera, Eduardo
Castro, Germán R.
author_role author
author2 Rubio-Zuazo, Juan
López-Sánchez, Jesús
Arnay, Iciar
Salas-Colera, Eduardo
Castro, Germán R.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Consejo Superior de Investigaciones Científicas (España)
European Synchrotron Radiation Facility
Serrano, Aida [0000-0002-6162-0014]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description 6 pages, 5 figures
publishDate 2018
dc.date.none.fl_str_mv 2018
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/401856
https://api.elsevier.com/content/abstract/scopus_id/85049243807
url http://hdl.handle.net/10261/401856
https://api.elsevier.com/content/abstract/scopus_id/85049243807
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO//MAT2012-38045-C04-03
https://doi.org/10.1021/acs.jpcc.8b02430
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
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