Preparation and characterization of CoFe2O4/TiO2 magnetic composite films |
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| Authors: | XiaoXia Tian ShaoBo Qu ZhiBin Pei BinKe Wang |
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| Affiliation: | (1) College of Science, Air Force Engineering University, Xi’an, 710051, China;(2) Electronic Materials Research Laboratory, Key Laboratory of Ministry of Education, Xi’an Jiaotong University, Xi’an, 710049, China |
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| Abstract: | CoFe2O4/TiO2 magnetic composite films were prepared using the sol-gel method with tetrabutyltitanate and metallic chlorates as starting materials. The effects of heat treatment temperatures on microstructures and on magnetic properties were studied. The microstructure and properties of the samples at different heat treatment temperatures were characterized by X-ray diffraction, Raman spectrum, scanning electron microscopy, polarized microscopy and vibrating sample magnetometry. The results show that crystals of different substances grow up independently. Cobalt ferrite is evenly embedded into the titanium dioxide matrix in the prepared composite films. The magnetism of the composite films is enhanced with an increase of the heat temperature. Supported by the National Natural Science Foundation of China (Grant Nos. 50632030 and 10474077), and the Natural Science Foundation of Shaanxi Province (Grant No. 2006E135) |
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| Keywords: | CoFe2O4/TiO2 composite films magnetism sol-gel |
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