| Fe54Pt46纳米薄膜的结构与磁性 |
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| 引用本文： | 刘梅,张玉梅,于永生,李海波,费维栋.Fe54Pt46纳米薄膜的结构与磁性[J].吉林大学学报(理学版),2009,47(5):1047-1049. |
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| 作者姓名： | 刘梅 张玉梅 于永生 李海波 费维栋 |
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| 作者单位： | 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 |
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| 基金项目： | 国家自然科学基金，教育部科研重点项目基金，吉林省教育厅科研项目基金 |
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| 摘 要： | 采用磁控溅射法在SiO2〈0001〉基片上制备Fe54Pt46薄膜, 并经过650 ℃原位真空退火1 h. 利用X射线衍射和振动样品磁强计对样品的结构和磁性进行研究. 结果表明, 经过原位真空退火后, 样品发生了无序\|有序相转变, 得到了面心四方结构的L10-FePt纳米薄膜. 样品的有序度为0.92, 晶粒尺寸约为10 nm, 样品平行膜面的矫顽力为0.8 MA/m. 当磁场与膜面的夹角为50°时, 矫顽力达到最大值, 这与(111)面为能量最低面相符.
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| 关 键 词： | Fe54Pt46薄膜 磁控溅射 结构 磁性 |
| 收稿时间： | 2008-10-27 |
Structure and Magnetic Properties of Fe_(54)Pt_(46) Thin Film |
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| LIU Mei,ZHANG Yu-mei,YU Yong-sheng,LI Hai-bo,FEI Wei-dong.Structure and Magnetic Properties of Fe_(54)Pt_(46) Thin Film[J].Journal of Jilin University: Sci Ed,2009,47(5):1047-1049. |
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| Authors: | LIU Mei ZHANG Yu-mei YU Yong-sheng LI Hai-bo FEI Wei-dong |
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| Institution: | 1. Institute of Condensed Matter Physics and Materials Science, Jilin Normal University, Siping 136000, Jilin Province, China;2. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | The Fe54Pt46 thin film was deposited on SiO2〈0001〉 substrate by magnetron sputtering system, then the as\|deposited film was vacuum annealed at 650 ℃ in situ. The structure and magnetic properties of the film were investigated by means of X\|ray diffraction and vibrating sample magnetometer. The results indicate that phase transformation from disordered to ordered phase happened after vacuum annealing in situ. The face\|centered tetragonal L10-FePt thin film was obtained. Degree of chemical ordering is 0.92 and grain size is about 10 nm. The in\|plane coercivity of the film has reached 0.8 MA/m. The maximum value of coercivity was gained when the angle between magnetic filed and film surface is 50° corresponding to (111) minimum energy surface. |
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| Keywords: | Fe54Pt46 thin film magnetron sputtering structure magnetic property |
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