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Institut f. Physik FG Nanostrukturierte Materialien
Martin-Luther-Universitat Halle-Wittenberg
Von-Danckelmann-Platz 3, D-06120 Halle, Germany
Tel.: +49 345 55 25321
Fax.: +49 345 55 27034
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P. Graziosi, A. Gambardella, M. Calbucci, K. O’Shea, D. A. MacLaren A. Riminucci, I. Bergenti, S. Fugattini, M. Prezioso, N. Homonnay, G. Schmidt, D. Pullini, D. Busquets-Mataix, and V. Dediu Seed layer technique for high quality epitaxial manganite films Advances 6 (2017-04-14 13:21:05), 085109 DOI: http://dx.doi.org/10.1063/1.4961228
We introduce an innovative approach to the simultaneous control of growth mode and magnetotransport properties of manganite thin films, based on an easy-to-implement film/substrate interface engineering. The deposition of a manganite seed layer and the optimization of the substrate temperature allows a persistent bi-dimensional epitaxy and robust ferromagnetic properties at the same time. Structural measurements confirm that in such interface-engineered films, the optimal properties are related to improved epitaxy. A new growth scenario is envisaged, compatible with a shift from heteroepitaxy towards pseudo-homoepitaxy. Relevant growth parameters such as formation energy, roughening temperature, strain profile and chemical states are derived. http://aip.scitation.org/doi/full/10.1063/1.4961228 |
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