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Crystallographic and magnetic properties of Ba-ferrite films prepared by a sol-gel pyrolysis method were investigated. A solution of Ba- and Fe-nitrates dissolved in ethylene glycol became a gel with an appropriate viscosity by ultrasonic stirring at 80??C. Films were spin-coated onto SiO2/Si substratesr dried and then heated in air at various temperatures. In films prepared at a composition ratio...
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