Cationic and charge segregation in La2/3Ca1/3MnO3 thin films grown on (001) and (110) SrTiO3.

Electron energy-loss spectroscopy is used to map composition and electronic states in epitaxial La2/3Ca1/3MnO3 films grown on SrTiO3 001 and 110 substrates. It is found that in partially relaxed 110 films cationic composition and valence state of Mn3+/4+ ions are preserved across the film thickness....

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Autores: Estradé Albiol, Sònia, Arbiol i Cobos, Jordi, Peiró Martínez, Francisca, Infante, I. C., Sánchez Barrera, Florencio, Fontcuberta i Griñó, Josep, Peña, F. de la, Walls, M., Colliex, C.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2008
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/32274
Acceso en línea:https://hdl.handle.net/2445/32274
Access Level:acceso abierto
Palabra clave:Propietats magnètiques
Pel·lícules fines
Espintrònica
Espectroscòpia de pèrdua d'energia d'electrons
Magnetic properties
Thin films
Spintronics
Electron energy loss spectroscopy
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spelling Cationic and charge segregation in La2/3Ca1/3MnO3 thin films grown on (001) and (110) SrTiO3.Estradé Albiol, SòniaArbiol i Cobos, JordiPeiró Martínez, FranciscaInfante, I. C.Sánchez Barrera, FlorencioFontcuberta i Griñó, JosepPeña, F. de laWalls, M.Colliex, C.Propietats magnètiquesPel·lícules finesEspintrònicaEspectroscòpia de pèrdua d'energia d'electronsMagnetic propertiesThin filmsSpintronicsElectron energy loss spectroscopyElectron energy-loss spectroscopy is used to map composition and electronic states in epitaxial La2/3Ca1/3MnO3 films grown on SrTiO3 001 and 110 substrates. It is found that in partially relaxed 110 films cationic composition and valence state of Mn3+/4+ ions are preserved across the film thickness. In contrast, in fully strained 001 films, the Ca/La ratio gradually changes across the film, being La rich at film/substrate interface and La depleted at free surface; Mn valence state changes accordingly. These observations suggest that a strongly orientation-dependent adaptative composition mechanism dominates stress accommodation in manganite films and provides microscopic understanding of their dissimilar magnetic properties.American Institute of Physics2008info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/32274Articles publicats en revistes (Enginyeria Electrònica i Biomèdica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: http://dx.doi.org/10.1063/1.2981574Applied Physics Letters, 2008, vol. 93, num. 3, p. 112505-1-112505-3http://dx.doi.org/10.1063/1.2981574(c) American Institute of Physics , 2008info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/322742026-05-27T06:46:51Z
dc.title.none.fl_str_mv Cationic and charge segregation in La2/3Ca1/3MnO3 thin films grown on (001) and (110) SrTiO3.
title Cationic and charge segregation in La2/3Ca1/3MnO3 thin films grown on (001) and (110) SrTiO3.
spellingShingle Cationic and charge segregation in La2/3Ca1/3MnO3 thin films grown on (001) and (110) SrTiO3.
Estradé Albiol, Sònia
Propietats magnètiques
Pel·lícules fines
Espintrònica
Espectroscòpia de pèrdua d'energia d'electrons
Magnetic properties
Thin films
Spintronics
Electron energy loss spectroscopy
title_short Cationic and charge segregation in La2/3Ca1/3MnO3 thin films grown on (001) and (110) SrTiO3.
title_full Cationic and charge segregation in La2/3Ca1/3MnO3 thin films grown on (001) and (110) SrTiO3.
title_fullStr Cationic and charge segregation in La2/3Ca1/3MnO3 thin films grown on (001) and (110) SrTiO3.
title_full_unstemmed Cationic and charge segregation in La2/3Ca1/3MnO3 thin films grown on (001) and (110) SrTiO3.
title_sort Cationic and charge segregation in La2/3Ca1/3MnO3 thin films grown on (001) and (110) SrTiO3.
dc.creator.none.fl_str_mv Estradé Albiol, Sònia
Arbiol i Cobos, Jordi
Peiró Martínez, Francisca
Infante, I. C.
Sánchez Barrera, Florencio
Fontcuberta i Griñó, Josep
Peña, F. de la
Walls, M.
Colliex, C.
author Estradé Albiol, Sònia
author_facet Estradé Albiol, Sònia
Arbiol i Cobos, Jordi
Peiró Martínez, Francisca
Infante, I. C.
Sánchez Barrera, Florencio
Fontcuberta i Griñó, Josep
Peña, F. de la
Walls, M.
Colliex, C.
author_role author
author2 Arbiol i Cobos, Jordi
Peiró Martínez, Francisca
Infante, I. C.
Sánchez Barrera, Florencio
Fontcuberta i Griñó, Josep
Peña, F. de la
Walls, M.
Colliex, C.
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Propietats magnètiques
Pel·lícules fines
Espintrònica
Espectroscòpia de pèrdua d'energia d'electrons
Magnetic properties
Thin films
Spintronics
Electron energy loss spectroscopy
topic Propietats magnètiques
Pel·lícules fines
Espintrònica
Espectroscòpia de pèrdua d'energia d'electrons
Magnetic properties
Thin films
Spintronics
Electron energy loss spectroscopy
description Electron energy-loss spectroscopy is used to map composition and electronic states in epitaxial La2/3Ca1/3MnO3 films grown on SrTiO3 001 and 110 substrates. It is found that in partially relaxed 110 films cationic composition and valence state of Mn3+/4+ ions are preserved across the film thickness. In contrast, in fully strained 001 films, the Ca/La ratio gradually changes across the film, being La rich at film/substrate interface and La depleted at free surface; Mn valence state changes accordingly. These observations suggest that a strongly orientation-dependent adaptative composition mechanism dominates stress accommodation in manganite films and provides microscopic understanding of their dissimilar magnetic properties.
publishDate 2008
dc.date.none.fl_str_mv 2008
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/2445/32274
url https://hdl.handle.net/2445/32274
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: http://dx.doi.org/10.1063/1.2981574
Applied Physics Letters, 2008, vol. 93, num. 3, p. 112505-1-112505-3
http://dx.doi.org/10.1063/1.2981574
dc.rights.none.fl_str_mv (c) American Institute of Physics , 2008
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) American Institute of Physics , 2008
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Institute of Physics
publisher.none.fl_str_mv American Institute of Physics
dc.source.none.fl_str_mv Articles publicats en revistes (Enginyeria Electrònica i Biomèdica)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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