Study on dielectric and magnetodielectric properties of Lu3Fe5O12 ceramics

Study on dielectric and magnetodielectric properties of Lu3Fe5O12 ceramics
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Lu3Fe5O12陶瓷介电和磁介电性能研究

DOI:
10.1063/1.3259651
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发表时间:
2009-11
影响因子:
4
通讯作者:
Yan, Feng
Yan, Feng
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Zhu, Jinsong;Huang, Fengzhen;Wu, Xiaobo;Liu, Yunfei;Wang, Xiaofei;Cai, Wei;Peng, Song;Lu, Xiaomei;Yan, Feng

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采用固相反应法制备了具有石榴石结构的Lu3Fe5O12多晶陶瓷。在低温下观察到的介电弛豫行为,这可能来自与电荷载流子在Fe 2+和Fe 3+之间跳跃相关的偶极效应。值得注意的是,它们的磁介电(MD)性能优异,因为施加的小磁场可以显着改变Lu3Fe5O12陶瓷的介电常数。讨论了MD效应的起源。
Polycrystalline Lu3Fe5O12 ceramics with garnet structure were prepared by a solid-state reaction method. A dielectric relaxor behavior at low temperature was observed which may come from the dipolar effects associated with the charge carrier hopping between Fe2+ and Fe3+. It is noticeable that their magnetodielectric (MD) properties are excellent since the applied small magnetic fields can dramatically change the dielectric constants of Lu3Fe5O12 ceramics. The origin of the MD effect is discussed.
钇铁石榴石陶瓷在宽温度范围内的介电弛豫
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发表时间: 2007-08
影响因子: 4
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