| 退极化场对铁电超晶格热力学性质的影响 |
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| 引用本文： | 陶永梅,吴银忠. 退极化场对铁电超晶格热力学性质的影响[J]. 安徽师范大学学报(自然科学版), 2006, 29(4): 352-355 |
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| 作者姓名： | 陶永梅 吴银忠 |
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| 作者单位： | 常熟理工学院,物理系,江苏,常熟,215500;常熟理工学院,物理系,江苏,常熟,215500 |
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| 摘 要： | 应用平均场理论,在横场伊辛模型的框架内,研究了退极化场对铁电超晶格热力学性质的影响.计算结果表明:退极化场使铁电超晶格的自发极化曲线更加平坦,使介电峰合并,并抑制超晶格的界面效应.
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| 关 键 词： | 退极化场 铁电超晶格 |
| 文章编号： | 2001-2443（2006）04-0352-04 |
| 收稿时间： | 2005-11-29 |
| 修稿时间： | 2005-11-29 |
The Effects of Depolarization Field on the Thermodynamic Properties of Ferroelectric Superlattice |
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| TAO Yong-mei,WU Yin-zhong. The Effects of Depolarization Field on the Thermodynamic Properties of Ferroelectric Superlattice[J]. Journal of Anhui Normal University(Natural Science Edition), 2006, 29(4): 352-355 |
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| Authors: | TAO Yong-mei WU Yin-zhong |
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| Affiliation: | Department of physics, Changshu Institute of Technology, Changshu 215500, China |
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| Abstract: | Using mean field theory, the effects of depolarization field on the thermodynamic properties of ferroelectric superlattice is studied within the framework of the transverse Ising model. Our results show that the depolarization field flattens the spontaneous polarization profile, making the susceptibility peak of the ferroelectric superlattice incorporate. And depolarization field weakens the interfacial coupling effects. |
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| Keywords: | depolarization field spontaneous polarization profile |
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