新型磁存储介质L1_0有序FePt薄膜研究综述  

Research Progress in the New Magnetic Recording Medium L1_0 Ordered FePt Films

作　　者：王现英[1] 方铭[1] 李青会[1] 沈德芳[1] 干福熹[1] 

机构地区：[1]中国科学院上海光学精密机械研究所,上海201800

出　　处：《材料导报》2005年第6期91-94,共4页Materials Reports

摘　　要：Ll_0有序 FePt 合金薄膜有大的各向异性能、矫顽力和饱和磁化强度,而且根据制备工艺条件的不同,其易磁化轴可以平行或垂直于膜面,因此极有可能成为下一代超高密度磁存储的介质,近年来引起了广泛的关注详细介绍了 FePt 薄膜近年来的研究结果,分析了其大矫顽力的机制、降低有序化温度、控制易磁化轴取向、降低粒子间相互作用的方法等对磁存储至关重要的问题,并对其在磁存储中的应用前景作了分析。L1_0 ordered FePt film has very high magnetic anisotropy energy,high coercivity and saturation magnetiza- tion,its easily magnetized axis can be parallel or perpendicular to the film plane depending on the prepare condi- tion.Consequently it is possible to be used as the recording medium of the next generation magnetic recording,and it has re- ceived much attention recently.In this paper,the origin and the influencing factors of the high coercivity of FePt films are in- troduced in detail,the mechanisms of reducing the ordering temperature,controlling the easy axis orientation,decreasing the exchange interaction are also discussed carefully.Finally,the future of its application in the magnetic storage is analyzed.

关 键 词：Pt薄膜 磁存储介质 研究综述 Fe 粒子间相互作用 饱和磁化强度 制备工艺条件 易磁化轴 合金薄膜 超高密度 研究结果 详细介绍 矫顽力 有序化 

分 类 号：TP333.2[自动化与计算机技术—计算机系统结构] TN215[自动化与计算机技术—计算机科学与技术]