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Sol-gel synthesis and characterization of polycrystalline GdFeO3 and Gd3Fe5O12 thin films
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
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2009 (English)In: Journal of Sol-Gel Science and Technology, ISSN 0928-0707, E-ISSN 1573-4846, Vol. 49, no 2, 253-259 p.Article in journal (Refereed) Published
Abstract [en]

Thin films of the perovskite and garnet structured gadolinium ferrites GdFeO3 and Gd3Fe5O12 have been synthesized by a sol-gel method, based on stoichiometric mixtures of acetyl acetone chelated Gd3+ and Fe3+ dissolved in 2-methoxy ethanol. After spin coating onto Si wafers, and heating in air at 700 degrees C for 20 h, neatly grown essentially single phase films were obtained. From X-ray photoelectron spectroscopy an iron deficiency is observed in the uppermost layer of both films, implying that the crystallites preferably end in planes rich in Gd and O but not in Fe. The films were also characterized by X-ray powder diffraction, scanning electron microscopy, infrared spectroscopy, and magnetic measurements.

Place, publisher, year, edition, pages
2009. Vol. 49, no 2, 253-259 p.
Keyword [en]
Thin film, Gadolinium iron oxides, Sol-gel synthesis, Magnetic properties, XPS
National Category
Engineering and Technology
URN: urn:nbn:se:uu:diva-137319DOI: 10.1007/s10971-008-1859-0ISI: 000263260000019OAI: oai:DiVA.org:uu-137319DiVA: diva2:378305
Available from: 2010-12-15 Created: 2010-12-15 Last updated: 2016-04-14

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