| 近邻和四自旋相互作用对铁电体畴结构影响的模拟 |
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| 引用本文： | 崔春玲,朱化凤. 近邻和四自旋相互作用对铁电体畴结构影响的模拟[J]. 青岛大学学报(自然科学版), 2010, 23(3): 32-37. DOI: 10.3969/j.issn.1006-1037.2010.03.009 |
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| 作者姓名： | 崔春玲 朱化凤 |
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| 作者单位： | 1. 青岛大学物理科学学院,青岛,266071
2. 中国石油大学(华东)物理科学与技术学院,青岛,266555 |
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| 基金项目： | 山东省自然科学基金项目，山东省高等学校科技计划项目，中国石油大学基础研究基金项目资助的课题 |
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| 摘 要： | 在二维Ising模型基础上,采用蒙特卡罗方法研究了二自旋和四自旋相互作用下,铁电体畴结构的动态演化和极化反转过程。数值模拟结果表明二自旋相互作用下极化反转过程中显示不出明显的畴纵向生长趋势。而四自旋相互作用下,方型的四自旋相互作用对于畴的纵向生长起主要作用,T型的四自旋相互作用可以导致反铁电相的出现。
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| 关 键 词： | 铁电体 畴结构 蒙特卡罗方法 |
Effect of Neighbor and Fourth Spin Interaction on Ferroelectric Domain Structures |
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| CUI Chun-ling,ZHU Hua-feng. Effect of Neighbor and Fourth Spin Interaction on Ferroelectric Domain Structures[J]. Journal of Qingdao University(Natural Science Edition), 2010, 23(3): 32-37. DOI: 10.3969/j.issn.1006-1037.2010.03.009 |
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| Authors: | CUI Chun-ling ZHU Hua-feng |
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| Affiliation: | 1.College of Physics,Qingdao University,Qingdao 266071,China;2.College of Physics Science and Technology,China University of Petroleum,Qingdao,266555,China) |
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| Abstract: | In this paper,the effect of neighbor and fourth spin on ferroelectric domain structures is researched in details.The dynamical evolvement of the ferroelectric domain and polarization reversion is simulated with the method of Monte Carlo.Simulation results show the neighbor spin interaction has little effect on the growth of the domains.The growth of the domains is mainly decided by the interaction of square type fourth spin.T type fourth spin interaction will result in the appearance of the antiferroelectric phase. |
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| Keywords: | Ferroelectrics domain Monte Carlo simulation |
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