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Preparation and Magnetic Properties of Submicron CrO2 Thin Film on Poly-crystal TiO2 Film |
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| Authors: | YUAN Ju-jun WEN Ge-hui ZHAO Qiang FAN Yin-bo ZHANG Cai-ping ZHANG Xian-ke YU Hua-jun XIE Ying-mao |
| Institution: | 1. College of Physics and Electronics, Gannan Normal University, Ganzhou 341000, P. R. China; 2. State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, P. R. China; 3. Institute of Optoelectronic Materials and Technology, Gannan Normal University, Ganzhou 341000, P. R. China; 4. State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China |
| Abstract: | The submicron chromium dioxide(CrO2) thin film was fabricated on a poly-crystal titania(TiO2) film using Si wafers as substrates by atmospheric pressure chemical vapor deposition(CVD) method. X-Ray diffraction patterns show that the CrO2 films were pure rutile structure. Scanning electron microscopy(SEM) images indicate that the CrO2 films consisted of submicron grains with a grain size of 250―750 nm. The magnetic researches reveal that the magnetic easy axis is parallel to the films, and at room temperature, the CrO2 films show linear magnetoresistance. |
| Keywords: | CrO2 film TiO2 film Chemical vapor deposition(CVD) Magnetic property Half-metal ferromagnet |
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