| Gd掺杂BiFeO3铁磁电陶瓷的介电性能 |
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| 引用本文： | 郭铁朋,秦萍. Gd掺杂BiFeO3铁磁电陶瓷的介电性能[J]. 常熟理工学院学报, 2007, 21(8): 26-30 |
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| 作者姓名： | 郭铁朋 秦萍 |
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| 作者单位： | 1. 河南省地质矿产勘查开发局第三地质调查队,河南,信阳,464000
2. 信阳师范学院,物理电子工程学院,河南,信阳,464000 |
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| 摘 要： | 采用固相反应法制备了对BiFeO3进行A位Gd掺杂的系列陶瓷样品Bi1-xGdxFeO3(x为0.00、0.05、0.10、0.15、0.20),借助XRD物相分析手段对样品进行的研究表明其均为三方钙钛矿结构;室温下频率在100Hz-1MHz范围内,Gd掺杂各组分样品的介电常数εr都比未掺杂时显著提高,x=0.05组分样品的介电常数εr最大;除了x=0.05组分,各组分样品的介电损耗tanδ都比未掺杂时略为减小.
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| 关 键 词： | 铁磁电材料 BiFeO3 Gd掺杂 介电性 |
| 文章编号： | 1008-2794（2007）08-0026-05 |
| 收稿时间： | 2007-07-09 |
Dielectric Properties of Multiferroic BiFeO3 Ceramic Doped with Gd |
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| GUO Tie-peng,QIN Ping. Dielectric Properties of Multiferroic BiFeO3 Ceramic Doped with Gd[J]. Journal of Changshu Institute of Technology, 2007, 21(8): 26-30 |
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| Authors: | GUO Tie-peng QIN Ping |
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| Affiliation: | 1.No.3 Geological Investigation Team of Geological and Exploration Bureau,Xinyang,Henan 0464000,China;2.College of Physics and Electronic Engineering,Xinyang Normal University,Xinyang,Henan 464000,China |
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| Abstract: | Multiferroic Bi1-xGdxFeO3(x=0.00,0.05,0.10,0.15,0.20) ceramics were prepared by solid state reaction method.XRD analysis showed all the samples had perovskite structure.Frequency dependence of dielectric properties of Bi1-xGdxFeO3 samples at room temperature was measured in a frequency range from 100Hz to 1MHz.The dielectric constant of the Bi1-xGdxFeO3 is larger than BiFeO3 with the Gd3 content increasing and with x=0.05,the dielectric constant has a biggest value in the five samples and the other dielectric loss has a slighter decrease than BiFeO3. |
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| Keywords: | multiferroic material BiFeO3 Gd doping dielectric property |
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