Effects of TbFeCo Underlayers on Magnetic Properties of CoFe2O4 Thin Films
Cobalt ferrite thin films were deposited on TbFeCo (10nm)/Si (100) and Si (100) substrates at a substrate temperature of 350℃ by RF magnetron sputtering. The heat treated films were analyzed by Vibrating Sample Magnetometer (VSM) and X-Ray Photoelectron Spectroscopy (XPS). Results showed that all films had high coercivity and perpendicular anisotropy especially for the films deposited on TbFeCo underlayer. TbFeCo underlayers increase the coercivity, magnetization and remanence ratio of CoFe <,2>O<,4> films, films on TbFeCo underlayer had coercivity and magnetization as high as 832x10<3>A·m <-1> and 450x10<3>A·m<-1>, and its romance ratio reaches 0.9, which was related to the Tb<3+> diffusion from the underlayer into the film.
cobalt ferrite magnetic properties coercivity magnetization remanence ratio rare earths
Jin Shenxian(金沈贤) Zhong Zhiyong(钟智勇) Ren Xueheng(任学恒) Tang Xiaoli(唐晓莉) Zhang Huaiwu(张怀武)
State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
国际会议
第五届国际稀土开发与应用研讨会(The Fifth International Conference on Rare Earth Decelopment and Applicatin)
包头
英文
194-197
2007-08-07（万方平台首次上网日期，不代表论文的发表时间）