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材料导报, 2008, 22(7): 8-13.

室温磁电材料的制备与性能

徐任信 1, , 王钧 2, , 周静 3, , 杨小利 4,

1.武汉理工大学材料科学与工程学院,武汉,430070

2.武汉理工大学材料科学与工程学院,武汉,430070

3.武汉理工大学材料科学与工程学院,武汉,430070

4.武汉理工大学材料科学与工程学院,武汉,430070

基金项目:   湖北省自然科学基金(2007ABA028)   国家自然科学基金(50402014)  

关键词： 磁电效应 , 铁磁 , 铁电 , 单相薄膜 , 复合材料

Fabrication and Properties of Magnetoelectric Materials Applied at Room Temperature

室温下具有磁电性能的多铁性材料是近年来研究的热点,分析了室温铁磁电单相材料和复合材料的制备方法及其性能,特别是外延生长、二次烧结和无机/有机复合技术分别对单相铁磁电薄膜、颗粒弥散型以及层状铁磁电复合材料结构与性能的影响.结果表明,通过诱导晶格变形、消除体系杂相,能获得具有强室温磁电性能的单相磁电材料.通过提高磁性颗粒在复合材料中的分散程度,可以明显增强弥散型磁电复合材料的磁电性能.将磁性和铁电材料进行层状复合,选择合适的外场耦合模式,得到了高磁电耦合系数的复合材料.

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