Microstructure and magnetic properties of (0 0 1)-oriented L10 FePt films: Role of Ag underlayer and Fe/Pt ratio
Microstructure and magnetic properties of (0 0 1)-oriented L10 FePt films: Role of Ag underlayer and Fe/Pt ratio
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DOI：
10.1016/j.materresbull.2012.04.114
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发表时间：
2012-10
影响因子：
5.4
通讯作者：
Hangbo Wang;Jun Zhang;Q. Mo;Fujun Yang;Hanbin Wang;X. Miao
中科院分区：
文献类型：
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作者：
Hangbo Wang;Jun Zhang;Q. Mo;Fujun Yang;Hanbin Wang;X. Miao
在Si（100）衬底上，采用直流磁控溅射法，在室温下以热生长的SiO2薄膜和溅射的Ag衬底为衬底，制备了FePt多层膜，并进行了真空退火。实验结果表明，适当厚度的Ag底层和稍富Fe含量可以有效地诱导FePt薄膜的（001）织构。在8nm Ag衬底上制备的Fe_（57.4）Pt_（42.6）薄膜具有7.6kOe的垂直磁化率和接近1的剩磁。
FePt multilayer films were deposited on Si(100) substrate with thermally grown SiO2film and sputtered Ag underlayer at room temperature by dc magnetron sputtering and subsequently annealing in vacuum. Experimental results suggest that proper thickness of Ag underlayer and slightly rich of Fe content can effectively induce the (001) texture of FePt films. A Fe57.4Pt42.6thin film on the 8nm Ag underlayer exhibits a large perpendicular coercivity of 7.6kOe with magnetic remanence close to 1.