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Preparation of iron cobaltite thin films by RF magnetron sputtering

Le Trong, Hoa and Bui, Thi Mai Anh and Presmanes, Lionel and Barnabé, Antoine and Pasquet, Isabelle and Bonningue, Corine and Tailhades, Philippe Preparation of iron cobaltite thin films by RF magnetron sputtering. (2015) Thin Solid Films, 589. 292-297. ISSN 0040-6090

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Official URL: http://dx.doi.org/10.1016/j.tsf.2015.05.041


Iron cobaltite thin films with spinel structure have been elaborated by radio-frequency (RF) magnetron sputtering from a Co1.75Fe1.25O4 target. Influence of argon pressure on structure, microstructure and physical properties of films has been examined. Iron–cobalt oxide thin films essentially consist of one spinel phase when deposited at low pressure (0.5 and 1.0 Pa). At high pressure (2.0 Pa), the global stoichiometry of the film is changed which results in the precipitation of a mixed monoxide of cobalt and iron beside the spinel phase. This in-situ reduction due to an oxygen loss occurring mainly at high deposition pressure has been revealed by X-ray diffraction and Raman spectroscopy. Microstructural evolution of thin film with argon pressure has been shown by microscopic observations (AFM and SEM). The evolution of magnetic and electrical properties, versus argon pressure, has been also studied by SQUID and 4 point probe measurements.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com/science/article/pii/S0040609015005751
HAL Id:hal-01168678
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Ho Chi Minh City University of Science - HCMC (VIETNAM)
Other partners > University of Transport and Communications - UTC (VIETNAM)
Other partners > Vietnam National University - VNU (VIETNAM)
Laboratory name:
Deposited On:26 Jun 2015 11:30

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