铁电体物理特性的计算机模拟  

The Computer Simulation of Ferroelectricity's Physics Character

作　　者：郭蕴博[1] 王砺锋[1] 于瑶[1] 王均义[1] 

机构地区：[1]南京大学物理系,江苏南京210093

出　　处：《实验室研究与探索》2006年第10期1190-1193,共4页Research and Exploration In Laboratory

基　　金：教育部物理学人才培养基地南京大学基地基金

摘　　要：利用Ising模型模拟了铁电体的微观机制,以此得到铁电体自发极化强度与电滞回线形状随温度的变化关系、极化反转过程中的畴结构变化等用普通仪器不易测得的结果,均较好地符合了理论的预期,弥补了实验室条件的不足。本内容可用作大学物理实验设计实验。The microcosmic mechanism of ferroelectricity was simulated using the Ising model. ferroelectricity＇s spontaneous polarization and hysteresis loop＇s shape is affected by temperature, how during are all Through this, how domain form revolves polarization transition can be got from the simulation result, which accord the theory＇s expects very well. These results difficult to get from experiments. So through this way, the shortage of laboratory condition can be compensated.

关 键 词：铁电体 ISING模型 计算机模拟 极化强度 

分 类 号：O411.3[理学—理论物理]