Domain structure of epitaxial SrRuO3 thin films
Growth of multidomains in epitaxial thin-film oxides is known to have a detrimental effect on some functional properties, and, thus, efforts are done to suppress them. It is commonly accepted that optimal properties of the metallic and ferromagnetic SrRu O 3 (SRO) epitaxies can only be obtained if v...
| Autores: | , , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2005 |
| País: | España |
| Institución: | Universidad de Barcelona |
| Repositorio: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/10644 |
| Acceso en línea: | https://hdl.handle.net/2445/10644 |
| Access Level: | acceso abierto |
| Palabra clave: | Pel·lícules fines Superfícies Propietats elèctriques Structure of solids and liquids Thin films and nanosystems Electronic structure and electrical properties of surfaces |
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Domain structure of epitaxial SrRuO3 thin filmsHerranz Casabona, GervasiSánchez Barrera, FlorencioFontcuberta i Griñó, JosepGarcía-Cuenca Varona, María VictoriaFerrater Martorell, CèsarVarela Fernández, Manuel, 1956-Angelova, T.Cros Stötter, AnaCantarero, A.Pel·lícules finesSuperfíciesPropietats elèctriquesStructure of solids and liquidsThin films and nanosystemsElectronic structure and electrical properties of surfacesGrowth of multidomains in epitaxial thin-film oxides is known to have a detrimental effect on some functional properties, and, thus, efforts are done to suppress them. It is commonly accepted that optimal properties of the metallic and ferromagnetic SrRu O 3 (SRO) epitaxies can only be obtained if vicinal SrTi O 3 (001) (STO) substrates are used. It is believed that this results from the suppression of multidomain structure in the SRO film. Here we revise this important issue. Nanometric films of SRO have been grown on STO(001) vicinal substrates with miscut ( θ V ) angles in the ∼ 0.04 ° – 4 ° range. Extensive structural analysis by x-ray-reciprocal space maps and μ -Raman spectroscopy indicates that single-domain, orthorhombic, SRO films are already obtained on the almost singular ( θ V ≈ 0.1 ° ) substrate, and, thus, substrates with large miscut angles are not required to grow twin-free films. In spite of this, transport properties are found to be optimized for films grown on vicinal substrates ( θ V ⩾ 2 ° ) . We claim that this is the result of the change of the growth mode and the resulting film morphology rather than the change of the domain structure. These findings drive the attention to the relevance of the growth mechanism at the initial stages of film growth, and we discuss its implications in other areas of oxide epitaxies. Moreover, we show that in clamped epitaxies on cubic substrates, in spite of isotropic biaxial substrate-induced strains, films may have an in-plane orthorhombic symmetry which results from the internal degree of freedom defined by rotations of the oxygen octahedrons.The American Physical Society2005info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/10644Articles publicats en revistes (Física Aplicada)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.71.174411Physical Review B, 2005, vol. 71, núm. 17, p. 174411 1-8http://dx.doi.org/10.1103/PhysRevB.71.174411(c) The American Physical Society, 2005info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/106442026-05-27T06:46:51Z |
| dc.title.none.fl_str_mv |
Domain structure of epitaxial SrRuO3 thin films |
| title |
Domain structure of epitaxial SrRuO3 thin films |
| spellingShingle |
Domain structure of epitaxial SrRuO3 thin films Herranz Casabona, Gervasi Pel·lícules fines Superfícies Propietats elèctriques Structure of solids and liquids Thin films and nanosystems Electronic structure and electrical properties of surfaces |
| title_short |
Domain structure of epitaxial SrRuO3 thin films |
| title_full |
Domain structure of epitaxial SrRuO3 thin films |
| title_fullStr |
Domain structure of epitaxial SrRuO3 thin films |
| title_full_unstemmed |
Domain structure of epitaxial SrRuO3 thin films |
| title_sort |
Domain structure of epitaxial SrRuO3 thin films |
| dc.creator.none.fl_str_mv |
Herranz Casabona, Gervasi Sánchez Barrera, Florencio Fontcuberta i Griñó, Josep García-Cuenca Varona, María Victoria Ferrater Martorell, Cèsar Varela Fernández, Manuel, 1956- Angelova, T. Cros Stötter, Ana Cantarero, A. |
| author |
Herranz Casabona, Gervasi |
| author_facet |
Herranz Casabona, Gervasi Sánchez Barrera, Florencio Fontcuberta i Griñó, Josep García-Cuenca Varona, María Victoria Ferrater Martorell, Cèsar Varela Fernández, Manuel, 1956- Angelova, T. Cros Stötter, Ana Cantarero, A. |
| author_role |
author |
| author2 |
Sánchez Barrera, Florencio Fontcuberta i Griñó, Josep García-Cuenca Varona, María Victoria Ferrater Martorell, Cèsar Varela Fernández, Manuel, 1956- Angelova, T. Cros Stötter, Ana Cantarero, A. |
| author2_role |
author author author author author author author author |
| dc.subject.none.fl_str_mv |
Pel·lícules fines Superfícies Propietats elèctriques Structure of solids and liquids Thin films and nanosystems Electronic structure and electrical properties of surfaces |
| topic |
Pel·lícules fines Superfícies Propietats elèctriques Structure of solids and liquids Thin films and nanosystems Electronic structure and electrical properties of surfaces |
| description |
Growth of multidomains in epitaxial thin-film oxides is known to have a detrimental effect on some functional properties, and, thus, efforts are done to suppress them. It is commonly accepted that optimal properties of the metallic and ferromagnetic SrRu O 3 (SRO) epitaxies can only be obtained if vicinal SrTi O 3 (001) (STO) substrates are used. It is believed that this results from the suppression of multidomain structure in the SRO film. Here we revise this important issue. Nanometric films of SRO have been grown on STO(001) vicinal substrates with miscut ( θ V ) angles in the ∼ 0.04 ° – 4 ° range. Extensive structural analysis by x-ray-reciprocal space maps and μ -Raman spectroscopy indicates that single-domain, orthorhombic, SRO films are already obtained on the almost singular ( θ V ≈ 0.1 ° ) substrate, and, thus, substrates with large miscut angles are not required to grow twin-free films. In spite of this, transport properties are found to be optimized for films grown on vicinal substrates ( θ V ⩾ 2 ° ) . We claim that this is the result of the change of the growth mode and the resulting film morphology rather than the change of the domain structure. These findings drive the attention to the relevance of the growth mechanism at the initial stages of film growth, and we discuss its implications in other areas of oxide epitaxies. Moreover, we show that in clamped epitaxies on cubic substrates, in spite of isotropic biaxial substrate-induced strains, films may have an in-plane orthorhombic symmetry which results from the internal degree of freedom defined by rotations of the oxygen octahedrons. |
| publishDate |
2005 |
| dc.date.none.fl_str_mv |
2005 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/2445/10644 |
| url |
https://hdl.handle.net/2445/10644 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.71.174411 Physical Review B, 2005, vol. 71, núm. 17, p. 174411 1-8 http://dx.doi.org/10.1103/PhysRevB.71.174411 |
| dc.rights.none.fl_str_mv |
(c) The American Physical Society, 2005 info:eu-repo/semantics/openAccess |
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(c) The American Physical Society, 2005 |
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openAccess |
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application/pdf |
| dc.publisher.none.fl_str_mv |
The American Physical Society |
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The American Physical Society |
| dc.source.none.fl_str_mv |
Articles publicats en revistes (Física Aplicada) reponame:Dipòsit Digital de la UB instname:Universidad de Barcelona |
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Universidad de Barcelona |
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Dipòsit Digital de la UB |
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Dipòsit Digital de la UB |
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15,300719 |