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Título

Interface structure governed by plastic and structural dissimilarity in perovskite La 0.7Sr 0.3MnO 3 nanodots on rock-salt MgO substrates

AutorAbellán, Patricia ; Zabaleta, Jone ; Santiso, José ; Dix, Nico ; Mestres, Narcís ; Puig Molina, Teresa ; Obradors, Xavier ; Sandiumenge, Felip
Fecha de publicación2012
EditorAmerican Institute of Physics
CitaciónApplied Physics Letters 100(8): 083104 (2012)
ResumenSelf-assembled La 0.7Sr 0.3MnO 3 perovskite nanodots have been grown on highly mismatched rock-salt type MgO substrates by chemical solution deposition. The interfacial dislocation structure indicates that the relaxation mechanism is governed by the easy glide of MgO 1/2101{101} dislocations towards the interface, where they dissociate into misfit-relieving and tilting components. The latter induce a 4-domain tilt pattern superimposed to the main cube-on-cube epitaxial orientation. It is shown that the inheritance of the rotational component of the Burgers vector has detrimental consequences on the interfacial quality, evidencing the impact of structural and plastic dissimilarity on the design of self-assembled nanostructures. © 2012 American Institute of Physics.
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Versión del editorhttp://dx.doi.org/10.1063/1.3687692
URIhttp://hdl.handle.net/10261/51026
DOI10.1063/1.3687692
Identificadoresdoi: 10.1063/1.3687692
issn: 0003-6951
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