Journal
APPLIED SURFACE SCIENCE
Volume 359, Issue -, Pages 480-485Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2015.10.104
Keywords
Magnetite; Cobalt ferrite; Spinel; Thin film; Mossbauer spectroscopy; Pulsed laser deposition
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Funding
- Spanish Ministry of Economy and Competitiveness (MINECO) through a Ramon y Cajal [MAT2012-38045-C04-01, MAT2012-38045-C04-2, MAT2013-48009-C4-1-P, CTQ2013-43086-P, RYC-2011-08069]
- EU-FP7 NANOPYME Project [310516]
- MINECO for an FPI contract [BES-2013-063396]
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We have grown mixed magnetite/cobalt ferrite epitaxial films on SrTiO3 by infrared pulsed-laser deposition. Diffraction experiments indicate epitaxial growth with a relaxed lattice spacing. The films are flat with two distinct island types: nanometric rectangular mounds in two perpendicular orientations, and larger square islands, attributed to the two main components of the film as determined by Mossbauer spectroscopy. The origin of the segregation is suggested to be the oxygen-deficiency during growth. (C) 2015 Elsevier B.V. All rights reserved.
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