| 铁电/铁磁复合材料的磁性能和介电性能研究 |
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| 引用本文： | 齐西伟,周济,岳振星,桂治轮,李龙土.铁电/铁磁复合材料的磁性能和介电性能研究[J].电子元件与材料,2003,22(4):3-5. |
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| 作者姓名： | 齐西伟 周济 岳振星 桂治轮 李龙土 |
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| 作者单位： | 清华大学材料系新型陶瓷与精细工艺国家重点实验室,北京,100084 |
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| 基金项目： | 国家高技术研究发展计划支持项目(2001A325020) |
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| 摘 要： | 铁电/铁磁复合材料是一类在材料内部同时共存铁电相和铁磁相的重要功能材料。在外加磁场和电场的作用下,其磁化和极化状态易于调控。笔者以铁电性的钛酸钡和铁磁性镍铜锌铁氧体纳米粉为原料,采用固相反应法,合成了一系列铁电/铁磁复合材料。研究表明:在一定温度下烧结所得的铁电/铁磁复合材料,由铁电相和铁磁相两相所组成,对外表现出铁电性和铁磁性。该复合材料同时具有电感和电容两种特性,而且频率稳定性好,有望替代现有的分立式无源滤波器,做到真正的集成而广泛应用在集成电路中。
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| 关 键 词： | 铁电/铁磁复合材料 钛酸钡 镍铜锌铁氧体 电感 电容 |
| 文章编号： | 1001-2028(2003)04-0003-03 |
| 修稿时间： | 2002年11月1日 |
Study on Magnetic and Dielectric Properties of Ferroelectric/Ferromagnetic Composites |
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| QI Xi-wei,ZHOU Ji,YUE Zhen-xing,GUI Zhi-lun,LI Long-tu.Study on Magnetic and Dielectric Properties of Ferroelectric/Ferromagnetic Composites[J].Electronic Components & Materials,2003,22(4):3-5. |
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| Authors: | QI Xi-wei ZHOU Ji YUE Zhen-xing GUI Zhi-lun LI Long-tu |
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| Abstract: | Ferroelectric/ferromagnetic composites is of both ferroelectric and ferromagnetic phase. The state of magnetization or polarization can be easily controlled by applying an external magnetic field or electric field. A series of composites were synthesized by solid-state reaction, with nanometer ferroelectric powder of BaTiO3 and nanometer ferromagnetic powder of NiCuZn as raw material. The acquired ferroelectric/ ferromagnetic composites sintered at proper temperature are of ferroelectric phase and ferromagnetic phase, exhibiting ferroelectricity and ferromagnetism. Therefore, the composites exhibit both inductance and capacitance properties and excellent stability-frequency characteristic. For the unique advantage, it will be widely used in integrated circuities. |
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| Keywords: | ferroelectric/ferromagnetic composites BaTiO3 NiCuZn ferrite inductance capacitance |
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