Carregant...
Miniatura

Tipus de document

Article

Versió

Versió publicada

Data de publicació

Tots els drets reservats

Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/32768

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

Títol de la revista

Director/Tutor

ISSN de la revista

Títol del volum

Resum

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.

Citació

Citació

ESTRADÉ ALBIOL, Sònia, REBLED, J. m. (josé manuel), ARBIOL I COBOS, Jordi, PEIRÓ MARTÍNEZ, Francisca, INFANTE, I. c., HERRANZ CASABONA, Gervasi, SÁNCHEZ, F., FONTCUBERTA I GRIÑÓ, Josep, CÓRDOBA, R., MENDIS, B. g., BLELOCH, A. l.. Effects of thickness on the cation segregation in epitaxial (001) and (110) La2/3Ca1/3MnO3 thin films. _Applied Physics Letters_. 2009. Vol. 95, núm. 072507-1-072507-3. [consulta: 29 de gener de 2026]. ISSN: 0003-6951. [Disponible a: https://hdl.handle.net/2445/32768]

Exportar metadades

JSON - METS

Compartir registre