| 电场中三层铁电超晶格的物理性质研究 |
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| 引用本文： | 姜伟,罗永祥,白保东.电场中三层铁电超晶格的物理性质研究[J].中国物理 B,2005,14(6):1243-1245. |
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| 作者姓名： | 姜伟 罗永祥 白保东 |
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| 作者单位： | College of Sciences, Shenyang University of Technology, Shenyang 110023, China；;Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, China;School of Electrical Engineering, Shenyang University of Technology, Shenyang 110023, China |
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| 基金项目： | Project supported by the Natural Science Foundation of China(Grant No 50477049) and the Scientific Research Foundation of the Educational Department of Liaoning province (Grant No 2004C006) and the Natural Science Foundation of Liaoning province (Grant No 20041021) and the Hong Kong Polytechnic University through the University Research Grant (Grant No G-T842). |
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| 摘 要： | 基于微分算符技术的相关有效场理论研究用伊辛模型描述的铁电三层超晶格的物理性质。讨论了电场对电极矩、电极化率、热电系数等物理性质的影响。
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| 关 键 词： | 铁电超晶格 电极矩 电极化率 |
| 收稿时间： | 2004-10-26 |
Physical properties of ferroelectric superlattice A3/B3 system in electric field |
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| Jiang Wei,Lo Veng-Cheong and Bai Bao-Dong.Physical properties of ferroelectric superlattice A3/B3 system in electric field[J].Chinese Physics B,2005,14(6):1243-1245. |
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| Authors: | Jiang Wei Lo Veng-Cheong and Bai Bao-Dong |
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| Institution: | College of Sciences, Shenyang University of Technology, Shenyang 110023, China；; School of Electrical Engineering, Shenyang University of Technology, Shenyang 110023, China; Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, China |
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| Abstract: | The transverse Ising model (TIM) in the effective-field theory based on the differential operator technique is developed to study the physical properties of a ferroelectric superlattice A3/B3 system. The effects of an external electric field on the polarization, susceptibility and pyroelectric coefficient of the ferroelectric superlattice A3/B3 system are discussed in detail. The susceptibility of the ferroelectric superlattice A3/B3 system decreases with the increasing of the electric field, implying that the polarization is weak. |
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| Keywords: | Ferroelectric superlattice Polarization Pyroelectric coefficient Susceptibility |
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