Surface nanostructures in manganite films

A. Gambardella, P. Graziosi, I. Bergenti, M. Prezioso, D. Pullini, S. Milita, F. Biscarini, V. A. Dediu

Research output: Contribution to journalArticle


Ultrathin manganite films are widely used as active electrodes in organic spintronic devices. In this study, a scanning tunnelling microscopy (STM) investigation with atomic resolution revealed previously unknown surface features consisting of small non-stoichiometric islands. Based upon this evidence, a new mechanism for the growth of these complex materials is proposed. It is suggested that the non-stoichiometric islands result from nucleation centres that are below the critical threshold size required for stoichiometric crystalline growth. These islands represent a kinetic intermediate of single-layer growth regardless of the film thickness, and should be considered and possibly controlled in manganite thin-film applications.

Original languageEnglish
Article number5353
JournalScientific Reports
Publication statusPublished - Jun 19 2014

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    Gambardella, A., Graziosi, P., Bergenti, I., Prezioso, M., Pullini, D., Milita, S., Biscarini, F., & Dediu, V. A. (2014). Surface nanostructures in manganite films. Scientific Reports, 4, [5353].