| 羰基铁/TiO2薄膜的制备及磁性能 |
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| 引用本文： | 汪飞艳,龚荣洲,沈翔.羰基铁/TiO2薄膜的制备及磁性能[J].磁性材料及器件,2007,38(1):37-39. |
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| 作者姓名： | 汪飞艳 龚荣洲 沈翔 |
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| 作者单位： | 华中科技大学,电子科学与技术系,湖北武汉,430074 |
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| 摘 要： | 在常压下用溶胶-凝胶法(不用酸作催化剂)制备了羰基铁/TiO2磁性薄膜,薄膜的颗粒尺寸为几十nm.通过原子力显微镜(AFM)、X射线衍射(XRD)、红外光谱(FT-IR)等方法分析材料形貌与微观结构,用振动样品磁强计和Agilent8722ES矢量网络分析仪对其磁性能进行了表征.结果表明,羰基铁粉颗粒表面均匀地包覆非晶态TiO2,钛酸正四丁酯与铁发生了键合作用.包覆后的复合薄膜的饱和磁化强度为163kA/m,矫顽力Hc仅为1.2kA/m.介电损耗型材料二氧化钛与磁损耗型材料羰基铁复合,可调节磁性能.
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| 关 键 词： | 羰基铁/TiO2薄膜 溶胶-凝胶法 磁性能 |
| 文章编号： | 1001-3830(2007)01-0037-03 |
| 修稿时间： | 2006-03-30 |
Preparation and Magnetic Properties of Fe/TiO2 Core-shell Composite Thin Film |
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| WANG Fei-yan,GONG Rong-zhou,SHEN Xiang.Preparation and Magnetic Properties of Fe/TiO2 Core-shell Composite Thin Film[J].Journal of Magnetic Materials and Devices,2007,38(1):37-39. |
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| Authors: | WANG Fei-yan GONG Rong-zhou SHEN Xiang |
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| Affiliation: | Department of Electronic Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China |
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| Abstract: | Fe/TiO2 composite thin film was prepared using sol-gel method without acid as catalyst,with particle size of less than 100nm. The morphology and microstructure of the composite thin film were characterized by AFM, XRD and FT-IR, and magnetic properties were measured using VSM and vector net analyzer. The results show that carbonyl-iron are uniformily coated by TiO2, with bonding between Ti(OC4H9)4 and Fe. The magnetization is 163kA/m and the coercive force is only 1.2kA/m. The magnetic properties can be modified by compounding electric and magnetic loss material. |
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| Keywords: | carbonyl-iron/TiO2 thin film sol-gel magnetic properties |
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