Seed layer technique for high quality epitaxial manganite films | Zendy

Patrizio Graziosi | Zendy; Alessandro Gambardella | Zendy; Marco Calbucci | Zendy; Kerry J. O’Shea | Zendy; Donald A. MacLaren | Zendy; Alberto Riminucci | Zendy; I. Bergenti | Zendy; Silvio Fugattini | Zendy; M. Prezioso | Zendy; N. Homonnay | Zendy; G. Schmidt | Zendy; D. Pullini | Zendy; D. Busquets-Mataix | Zendy; V. Dediu | Zendy

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Seed layer technique for high quality epitaxial manganite films

Author(s) -

Patrizio Graziosi,

Alessandro Gambardella,

Marco Calbucci,

Kerry J. O’Shea,

Donald A. MacLaren,

Alberto Riminucci,

I. Bergenti,

Silvio Fugattini,

M. Prezioso,

N. Homonnay,

G. Schmidt,

D. Pullini,

D. Busquets-Mataix,

V. Dediu

Publication year - 2016

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4961228

Subject(s) - manganite , epitaxy , materials science , substrate (aquarium) , ferromagnetism , layer (electronics) , thin film , optoelectronics , strain engineering , deposition (geology) , condensed matter physics , nanotechnology , silicon , geology , paleontology , oceanography , physics , sediment

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.

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