Preparation and Magnetic Properties of Submicron CrO2 Thin Film on Poly-crystal TiO2 Film  

作　　者：YUAN Ju-jun WEN Ge-hui ZHAO Qiang FAN Yin-bo ZHANG Cai-ping ZHANG Xian-ke YU Hua-jun XIE Ying-mao 

机构地区：[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

出　　处：《Chemical Research in Chinese Universities》2013年第3期600-602,共3页高等学校化学研究（英文版）

基　　金：Supported by the the National Natural Science Foundation of China（Nos.50972048, 61201007）, the Fundamental Research Fund for the Central Universities of China（No.ZYGX2011 J022）, the Youth Fund of Education Department of Jiangxi Province of China（No.GJJ12575） and the Open Project of State Key Laboratory of Superhard Materials（Jilin University） of China （No.201213）.

摘　　要：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 rim. The magnetic researches reveal that the magnetic easy axis is parallel to the films, and at room temperature, the CrO2 films show linear magnetoresistance.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 rim. The magnetic researches reveal that the magnetic easy axis is parallel to the films, and at room temperature, the CrO2 films show linear magnetoresistance.

关 键 词：CrO2 film TiO2 film Chemical vapor deposition（CVD） Magnetic property Half-metal ferromagnet 

分 类 号：TQ153.12[化学工程—电化学工业] O484[理学—固体物理]