| 铁电开关的尺寸效应 |
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| 引用本文： | 徐荣青,周青春,王茂祥. 铁电开关的尺寸效应[J]. 应用科学学报, 2003, 21(2): 173-176 |
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| 作者姓名： | 徐荣青 周青春 王茂祥 |
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| 作者单位： | 1.华东船舶工业学院信息与电子系 江苏 镇江 212003;2.华东船舶工业学院基础学科系 江苏 镇江 212003;3.东南大学固体电子学系 江苏 南京 210096 |
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| 摘 要： | 将Orihara-ishibashi铁电体统计理论用于三维立方铁电体,求出立方铁电畴反转过程中的反转体积比Q(t)和与开关电流相关的反转速率dQ/dt的表达式,并对不同系统尺寸作了数值计算.结果表明,开关电流随系统尺寸l变小而下降,在一定尺寸范围内(l<0.75),开关时间也随l减小而下降。
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| 关 键 词： | 开关电流 畴 铁电体 |
| 文章编号： | 0255-8297(2003)02-0173-04 |
| 收稿时间： | 2002-01-02 |
| 修稿时间： | 2002-04-16 |
Size Effect in Ferroelectric Switching |
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| XU Rong-qing,ZHOU Qing-chun,WANG Mao-xiang. Size Effect in Ferroelectric Switching[J]. Journal of Applied Sciences, 2003, 21(2): 173-176 |
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| Authors: | XU Rong-qing ZHOU Qing-chun WANG Mao-xiang |
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| Affiliation: | 1.Department of Information and Electronics, East China Shipbuilding Institute, Zhenjiang 212003, China;2.Department of Basic Courses, East China Shipbuilding Institute, Zhenjiang 212003, China;3.Department of Electronic Engineering, Southeast University, Nanjing 210096, China |
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| Abstract: | The Orihara-Ishibashi theory of finite ferroelectric system is applied to the cubic ferro-electrics. The expressions of the ratio of the reversed domain volume to the system volume Q(t) and the reversal rate dQ/dt which is closely related to the switching current, are given for cubic domain reversals. Computations indicate that the switching current drops with the size of the ferroelectric system, and in a certain range of l(l<0. 75), the switching time also decreases with l. |
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| Keywords: | ferroelectrics switching current domain |
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