Seed layer technique for high quality epitaxial manganite films

Graziosi, Patrizio and Gambardella, A. and Calbucci, M. and O’Shea, K. and MacLaren, D.A. and Riminucci, A. and Bergenti, I. and Fugattini, S. and Prezioso, M. and Homonnay, N. and Schmidt, G. and Pullini, D. and Busquets - Mataix, D. and Dediu, V. (2016) Seed layer technique for high quality epitaxial manganite films. AIP Advances (6).

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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.

Item Type: Article
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
600 Tecnologia - Scienze applicate > 660 Ingegneria chimica > 666 Tecnologia ceramica e tecnologie affini > 666.4 Materiali, processi, attrezzature della ceramica
Depositing User: Dr. Patrizio Graziosi
Date Deposited: 14 Sep 2016 07:33
Last Modified: 14 Sep 2016 07:33

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