| Lu_3Fe_5O_(12)陶瓷的掺杂改性研究 |
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| 引用本文： | 吴晓波,刘耀阳,蔡炜,王晓飞,阚益.Lu_3Fe_5O_(12)陶瓷的掺杂改性研究[J].南京大学学报(自然科学版),2011(1). |
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| 作者姓名： | 吴晓波 刘耀阳 蔡炜 王晓飞 阚益 |
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| 作者单位： | 南京医科大学基础医学院;南京大学物理学院; |
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| 基金项目： | 国家自然科学基金(50832002); 973项目(2009CB929501); 江苏省高校自然科学基金(09KJB310009) |
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| 摘 要： | 采用传统的固相烧结工艺,制备了不同Mg掺杂量的Lu3Fe5O12陶瓷样品,并对样品的结构,磁性能,红外光谱及拉曼光谱进行相关研究.发现Mg的掺入并未改变Lu3Fe5O12陶瓷的石榴石结构,同时Mg的掺入对于Lu3Fe5O12陶瓷的磁性性能有着显著地影响,当Mg的掺杂量较小时,优先取代八面体a位的铁离子,从而使得样品磁性增强,而当镁离子的掺杂量达到一定程度后,将会同时占据八面体a位和四面体d位两种次晶格,从而使得样品磁性相对减弱.此外,红外光谱及拉曼光谱的研究结果证实了Mg掺杂对Lu3Fe5O12磁性改变的机制的推测.
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| 关 键 词： | Mg掺杂 铁氧体 镥铁石榴石 磁性 |
A modification of Lu_3Fe_5O_(12) ceramics |
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| Wu Xiao-Bo,Liu Yao-Yang,Cai Wei,Wang Xiao-Fei,Kan Yi.A modification of Lu_3Fe_5O_(12) ceramics[J].Journal of Nanjing University: Nat Sci Ed,2011(1). |
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| Authors: | Wu Xiao-Bo Liu Yao-Yang Cai Wei Wang Xiao-Fei Kan Yi |
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| Institution: | Wu Xiao-Bo1,2,Liu Yao-Yang2,Cai Wei2,Wang Xiao-Fei2,Kan Yi2(1.School of Basic Medical Sciences,Nanjing Medical University,Nanjing,210029,China,2.School of Physics,Nanjing University,210093,China) |
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| Abstract: | Ferrimagnetic ceramics are an important kind of material used for electronic devices as tunable microwave devices(radar,telecommunication and radio frequency measurement systems),circulators,isolators,phase shifters,tunable filters and nonlinear devices.Re3Fe5O12(Re represents rare earth) is an example of ferrimagnetic ceramics widely applied in passive microwave devices.It belongs to a group of magnetic oxides,characterized by specific magnetic and magnetooptical properties.In this paper,the properties of ... |
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| Keywords: | Mg doping ferrite lutetium iron garnet magnetic |
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