摘要
研究了采用Fe／Pt／Ag多层膜先驱体技术制备的FePt：Ag纳米复合膜的微观结构和磁学性能与退火温度及Ag含量之间的关系。经400。C退火，组份为Fe39Pt39Ag22薄膜中FePt纳米颗粒的结构为面心四方相，矫顽力达到4．77×10^5A／m，平均晶粒尺寸为6．7nm。结果显示这种新型材料系统很可能适用于超高密度磁存储介质。
The microstructure and magnetic properties of FePt： Ag nanocomposite films prepared by Fe/Pt/Ag multilayers precursor technique were studied. With Ag concentration of 22% in atomic ratio, the coercivity of Fe39Pt39Ag22 film got to 6. 0 kOe with a grain size of 6. 7 nm after annealing at 400℃. The results suggest this system might be applicable to ultra high-density magnetic recording media.
基金
国家自然科学基金（批准号50371056及60490291）,湖北省青年杰出人才基金,湖北省教育厅重大项目（20042003）,湖北大学优秀创新研究团队资助项目.
关键词
FePt:Ag
矫顽力
相变
磁性
FePt： Ag
coercivity
phase transformation
magnetic
