FePt/Ag薄膜的结构和磁性  

Structure and magnetic properties of FePt/Ag thin film

作　　者：李海波[1] 张玉梅[1] 刘梅[1] 于永生[1,2] 张伟[1] 费维栋[2] 

机构地区：[1]吉林师范大学凝聚态物理与材料科学研究所,吉林四平136000 [2]哈尔滨工业大学材料科学与工程学院,哈尔滨150001

出　　处：《吉林大学学报（工学版）》2010年第6期1572-1576,共5页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(20971055);教育部科技研究重点项目(208178)

摘　　要：采用直流磁控溅射在SiO2〈0001〉基片上制备了FeAg和FePt/Ag薄膜,将其在不同温度下进行真空热处理,得到具有高矫顽力的L10-FePt颗粒膜。利用X射线衍射、振动样品磁强计、扫描探针显微镜对样品的结构、磁性、形貌进行了研究。结果表明:Ag元素的添加有效地降低了FePt薄膜的有序化温度,样品在300℃热处理时即发生有序化转变。随着热处理温度的升高,样品的有序化程度提高,矫顽力变大,样品表面粗糙度减小,形成了均匀的颗粒薄膜。The FeAg and FePt/Ag thin films were deposited on SiO2〈0001〉substrates by direct current magnetron sputtering at room temperature.L10-FePt granular films with high coercivity have been obtained after vacuum annealing at various temperature.The results indicated that adding Ag could educe the FePt ordering temperature effectively,the transformation from disorder to order phase took place when the films were annealed at 300℃. With increasing the annealing temperature,the chemical ordering degree increased while the surface roughness of the samples decreased,forming uniform granular films.

关 键 词：金属材料 磁记录材料 磁控溅射 L10-FePt 结构 磁性 

分 类 号：TG132.2[一般工业技术—材料科学与工程]