| 用离子束技术研究稀磁半导体和纳米磁性材料 |
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| 引用本文： | 姚淑德,丁志博,王坤,陈迪,法涛,陈田祥. 用离子束技术研究稀磁半导体和纳米磁性材料[J]. 核技术, 2010, 33(3) |
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| 作者姓名： | 姚淑德 丁志博 王坤 陈迪 法涛 陈田祥 |
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| 作者单位： | 北京大学核物理与核技术国家重点实验室,北京,100871;北京大学核物理与核技术国家重点实验室,北京,100871;北京大学核物理与核技术国家重点实验室,北京,100871;北京大学核物理与核技术国家重点实验室,北京,100871;北京大学核物理与核技术国家重点实验室,北京,100871;北京大学核物理与核技术国家重点实验室,北京,100871 |
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| 摘 要： | 综述用离子束技术研究稀磁半导体和纳米磁性材料的构建、调控和改性的进展和现状。离子束注入是优选的构建和调控方法,测试结果表明在GaN和ZnO等新半导体光电材料中注入Mn、Ni和Co等过渡金属离子可得到低温和室温下的铁磁性。离子束分析技术给出这些新材料薄膜的微结构信息,透射电镜下观察到过饱和剂量Mn+注入GaN形成的纳米磁性颗粒。
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| 关 键 词： | 自旋半导体 纳米磁性材料 离子束技术 |
Investigation of diluted magnetic semiconductor and nano magnetic material by ion beam technology |
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| YAO Shude,DING Zhibo,WANG Kun,CHEN Di,FA Tao,CHEN Tiaaxiang. Investigation of diluted magnetic semiconductor and nano magnetic material by ion beam technology[J]. Nuclear Techniques, 2010, 33(3) |
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| Authors: | YAO Shude DING Zhibo WANG Kun CHEN Di FA Tao CHEN Tiaaxiang |
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| Abstract: | In this paper,we focus on constitution,magnetism modification and characterization of GaN-based materials using ion beam technology and formation of the nano structure by implanting Mn~+ or Co~+ ion of different doses into the film samples.SQUID and AGM were used to measure the magnetic properties,such as coercivity and saturation magnetization,for the samples before and after annealing,M-H and M-T curves showed ferromagnetism in the films at both low temperature and room temperature.RBS/C,PIXE and XRD were used to analyze the microstmcture,content of doping transition metal and damage.The nano-cluster of ferromagnetism particle was observed under HRTEM. |
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| Keywords: | Semiconductor Nano magnetic materials Ion beam technology |
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