| CoFe2O4的磁性和交换偏置场研究 |
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| 引用本文： | 杜明辉,黄玉华,李琦,张变芳.CoFe2O4的磁性和交换偏置场研究[J].石家庄铁道学院学报,2011(2):86-88. |
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| 作者姓名： | 杜明辉 黄玉华 李琦 张变芳 |
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| 作者单位： | [1]石家庄铁道大学教务处,河北石家庄050043 [2]安徽中铁工程材料科技有限公司,安徽合肥230041 [3]华北电力大学工程训练中心,河北保定071003 [4]石家庄铁道大学数理系,河北石家庄050043 |
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| 基金项目： | 河北省高等教育改革项目（104060）;河北省教育厅项目（Z2010305,2009155） |
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| 摘 要： | 用化学共沉淀法制备出颗粒细小的CoFe2O4纳米微粉，利用x射线衍射确定了粉体的组成，利用扫描电子显微镜观察了颗粒的形貌，利用振动样品磁强计测量了室温下粉体的磁性能。结果显示，常温下，存在交换偏置场。
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| 关 键 词： | 纳米微粉 磁性 交换偏置场 |
Study on Magnetic Properties and Exchange Bias Field of CoFe2O4 |
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| Du Minghui,Huang Yuhua,Li Qi,Zhang Bianfang.Study on Magnetic Properties and Exchange Bias Field of CoFe2O4[J].Journal of Shijiazhuang Railway Institute,2011(2):86-88. |
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| Authors: | Du Minghui Huang Yuhua Li Qi Zhang Bianfang |
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| Institution: | 1. Academic Affairs, Shijiazhuang Tiedao University, Shijiazhuang 050043, China; 2. Anhui ZhongTie Engineering Material and Technology Co. , Ltd,Hefei 230041 ,China; 3. Engineering Training Center, North China Electric Power University, Baoding 071003, China; 4. Department of Mathematics and Physics, Shijiazhuang Tiedao University, Shijiazhuang 050043, China) |
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| Abstract: | Nanocrystalline CoFe2O4 powders are prepared by chemical coprecipitation method with very fine crystalline grains. XRD is performed to study the phase structure Of CoFe2O4. SEM is used to observe the morphology of the powders. VSM is used to measure the magnetic parameters of samples at room temperatures. The results show that exchange bias field exists at room temperatures. |
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| Keywords: | nanocrystalline powder magnetic properties exchange bias field |
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