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Lu_3Fe_5O_(12)陶瓷的掺杂改性研究
  • ISSN号：0469-5097
  • 期刊名称：《南京大学学报：自然科学版》
  • 时间：0
  • 分类：TM284[电气工程—电工理论与新技术;一般工业技术—材料科学与工程]
  • 作者机构：[1]南京医科大学基础医学院 南京大学物理学院
  • 相关基金：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)
作者： 吴晓波[1], 刘耀阳[1], 蔡炜[1], 王晓飞[1], 阚益[1]
关键词： Mg掺杂, 铁氧体, 镥铁石榴石, 磁性, Mg doping, ferrite, lutetium iron garnet, magnetic
中文摘要：

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.

英文摘要：

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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期刊信息
  • 《南京大学学报：自然科学版》
  • 中国科技核心期刊
  • 主管单位:中华人民共和国教育部
  • 主办单位:南京大学
  • 主编：龚昌德
  • 地址：南京汉口路22号南京大学（自然科学版）编辑部
  • 邮编：210093
  • 邮箱：xbnse@netra.nju.edu.cn
  • 电话：025-83592704
  • 国际标准刊号：ISSN：0469-5097
  • 国内统一刊号：ISSN：32-1169/N
  • 邮发代号:28-25
  • 获奖情况:
  • 中国自然科学核心期刊,中国期刊方阵“双效”期刊
  • 国内外数据库收录:
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  • 被引量:9316