| 溶胶-凝胶法制备MgO/(Ba0.8Sr0.2)TiO3多层薄膜及其介电和漏电特性研究 |
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| 引用本文： | 贾建峰,黄 凯,潘清涛,李世国,贺德衍.溶胶-凝胶法制备MgO/(Ba0.8Sr0.2)TiO3多层薄膜及其介电和漏电特性研究[J].物理学报,2006,55(4):2069-2072. |
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| 作者姓名： | 贾建峰 黄 凯 潘清涛 李世国 贺德衍 |
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| 作者单位： | 兰州大学物理科学与技术学院，兰州 730000 |
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| 基金项目： | 高等学校优秀青年教师教学科研奖励计划资助的课题. |
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| 摘 要： | 采用改进的溶胶-凝胶方法在LaNiO3/Si(100)衬底上制备了MgO/(Ba0.8Sr0.2)TiO3多层薄膜.实验结果表明，MgO层的引入改变了(Ba0.8Sr0.2)TiO3的介电特性和漏电流行为，使薄膜的漏电 流降低了3个数量级，但介电常数也有相应降低.漏电流的显著降低是由MgO子层的高阻特性 以及微量Mg向(Ba0.8关键词：
0.8Sr0.2)TiO3多层薄膜')" href="#">MgO/(Ba0.8Sr0.2)TiO3多层薄膜
漏电流
介电常 数
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| 关 键 词： | MgO/(Ba0.8Sr0.2)TiO3多层薄膜 漏电流 介电常 数 |
| 收稿时间： | 07 29 2005 12:00AM |
| 修稿时间： | 2005-07-292005-11-03 |
Dielectric properties and leakage current of MgO/(Ba0.8Sr0.2)TiO3 heterostructured films prepared by sol-gel technique |
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| Jia Jian-Feng,Huang Kai,Pan Qing-Tao,Li Shi-Guo and He De-Yan.Dielectric properties and leakage current of MgO/(Ba0.8Sr0.2)TiO3 heterostructured films prepared by sol-gel technique[J].Acta Physica Sinica,2006,55(4):2069-2072. |
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| Authors: | Jia Jian-Feng Huang Kai Pan Qing-Tao Li Shi-Guo and He De-Yan |
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| Institution: | School of Physics Science and Technology, Lartzhou University, Lanzhou 730000, China |
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| Abstract: | Ferroelectric MgO/(Ba0.8Sr0.2)TiO3 heterostruct ured films have been grown on LaNiO3/Si(100) substrates by an improve d sol-gel technique. The dielectric constant and the leakage current of (Ba 0.8Sr0.2)TiO3 films have been modified by MgO insert ion. The dramatic reduction in the leakage current has been attributed to the mi nute solid solubility of MgO in the (Ba0.8Sr0.2)TiO3< /sub> lattice and the high resistance of the MgO layers. |
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| Keywords: | ferroelectric MgO/(Ba0 8 Sr0 2)TiO3 multilayer film leakage current dielectric constant |
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