Effects of thickness on the cation segregation in epitaxial (001) and (110) La2/3Ca1/3MnO3 thin films

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RECERCAT Home > Universitat de Barcelona > Enginyeria Electrònica i Biomèdica > Articles publicats en revistes (Enginyeria Electrònica i Biomèdica) > View document

To access the full text documents, please follow this link: http://hdl.handle.net/2445/32768

dc.contributor	Universitat de Barcelona
dc.contributor.author	Estradé Albiol, Sònia
dc.contributor.author	Rebled, J. M. (José Manuel)
dc.contributor.author	Arbiol i Cobos, Jordi
dc.contributor.author	Peiró Martínez, Francisca
dc.contributor.author	Infante, I. C.
dc.contributor.author	Herranz, G.
dc.contributor.author	Sánchez, F.
dc.contributor.author	Fontcuberta i Griñó, Josep
dc.contributor.author	Córdoba, R.
dc.contributor.author	Mendis, B. G.
dc.contributor.author	Bleloch, A. L.
dc.date	2012-11-20T15:23:39Z
dc.date	2012-11-20T15:23:39Z
dc.date	2009
dc.date	2012-11-20T15:23:39Z
dc.identifier.citation	0003-6951
dc.identifier.citation	571210
dc.identifier.uri	http://hdl.handle.net/2445/32768
dc.format	3 p.
dc.format	application/pdf
dc.language.iso	eng
dc.publisher	American Institute of Physics
dc.relation	Reproducció del document publicat a: http://dx.doi.org/10.1063/1.3211130
dc.relation	Applied Physics Letters, 2009, vol. 95, p. 072507-1-072507-3
dc.relation	http://dx.doi.org/10.1063/1.3211130
dc.rights	(c) American Institute of Physics , 2009
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Cations
dc.subject	Pel·lícules fines
dc.subject	Espintrònica
dc.subject	Espectroscòpia de pèrdua d'energia d'electrons
dc.subject	Cations
dc.subject	Thin films
dc.subject	Spintronics
dc.subject	Electron energy loss spectroscopy
dc.title	Effects of thickness on the cation segregation in epitaxial (001) and (110) La2/3Ca1/3MnO3 thin films
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion
dc.description.abstract	Electron-energy-loss spectroscopy is used to map composition and electronic states in epitaxial La2/3Ca1/3MnO3 LCMO films of various thicknesses grown on SrTiO3 001 and 110 substrates. For relatively thick films 20 nm , epitaxial tensile strain in 001 films promotes a compositional La/Ca gradient across the film thickness, being the interface La rich, while the relaxed 110 films are chemically homogeneous. In contrast, much thinner 001 and 110 LCMO films display a different La/Ca distribution, being La rich at the free surface. The observed distinct thickness-dependent composition gradient behavior reflects a balance between strain-induced elastic energy minimization and kinetic effects during growth.

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