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J. Korean Ceram. Soc. > Volume 43(11); 2006 > Article
Journal of the Korean Ceramic Society 2006;43(11): 703.
doi: https://doi.org/10.4191/kcers.2006.43.11.703
Liquid Phase Deposition of Transition Metal Ferrite Thin Films: Synthesis and Magnetic Properties
Caruntu Gabriel , O'Connor Charles J.
Advanced Materials Research Institute, Chemistry Department, University of New Orleans
We report on the synthesis of highly uniform, single phase zinc and cobalt thin films prepared by the Liquid Phase Deposition (LPD) method. X-Ray diffraction, TGA and EDX measurements support the assumption that the as deposited films are constituted by a mixture of crystallized FeOOH and amorphous M(OH)$_2$ (M=Co, Zn) which is converted upon heat treatment in air at 600?C into the corresponding zinc ferrites. The films with adjustable chemical compositions are identified with a crystal structure as spinel-type and present a spherical or rod-like microstructure, depending on the both the nature and concentration of the divalent transition metal ions. Zinc ferrite thin films present a superparamagnetic behavior above blocking temperatures which decrease with increasing the Zn content and are ferromagnetic at 5 K with coercivities ranging between 797.8 and 948.5 Oe, whereas the cobalt ferrite films are ferromagnetic at room temperature with magnetic characteristics strongly dependent on the chemical composition.
Key words: Ferrite, Thin film, Synthesis, Magnetic properties
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