Jump to main content
Jump to site search

Issue 16, 2014
Previous Article Next Article

Thin films of Co1.7Fe1.3O4 prepared by radio frequency sputtering – the first step towards their spinodal decomposition

Author affiliations

Abstract

Pure thin films of Co1.7Fe1.3O4 spinel iron cobaltites were prepared for the first time by radio frequency sputtering. Such films are made of small crystallites of about 20 to 30 nm in diameter. Because Co1.7Fe1.3O4 films have a composition located in the miscibility gap of Fe3O4–Co3O4, they can be submitted to spinodal transformation below about 900 °C. This transformation was also confirmed at 600 °C by X-ray diffraction and transmission electron microscopy studies. It was demonstrated however that this spinodal transformation occurs after only a few hours at low temperature. Indeed, after annealing in air at 300 to 450 °C for a few hours, the spinodal transformation leading to two-phase spinels, one rich in iron and the other rich in cobalt, was clearly revealed by Raman spectroscopy and electrical measurements.

Graphical abstract: Thin films of Co1.7Fe1.3O4 prepared by radio frequency sputtering – the first step towards their spinodal decomposition

Back to tab navigation

Publication details

The article was received on 19 Dec 2013, accepted on 03 Feb 2014 and first published on 03 Feb 2014


Article type: Paper
DOI: 10.1039/C3CE42588F
Author version
available:
Download author version (PDF)
CrystEngComm, 2014,16, 3359-3365

  •   Request permissions

    Thin films of Co1.7Fe1.3O4 prepared by radio frequency sputtering – the first step towards their spinodal decomposition

    T. M. A. Bui, H. Le Trong, L. Presmanes, A. Barnabé, C. Bonningue and P. Tailhades, CrystEngComm, 2014, 16, 3359
    DOI: 10.1039/C3CE42588F

Search articles by author

Spotlight

Advertisements