Sol-gel synthesis and characterization of polycrystalline GdFeO3 and Gd3Fe5O12 thin films
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
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.
Thin film, Gadolinium iron oxides, Sol-gel synthesis, Magnetic properties, XPS
IdentifiersURN: urn:nbn:se:liu:diva-16962DOI: 10.1007/s10971-008-1859-0OAI: oai:DiVA.org:liu-16962DiVA: diva2:200849