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双轴向列相Fréedericksz转变的Monte Carlo模拟
  • ISSN号：1007-2780
  • 期刊名称：《液晶与显示》
  • 时间：0
  • 分类：O753.2[理学—晶体学]
  • 作者机构：[1]河北工业大学理学院,天津300401
  • 相关基金：国家自然科学基金（No.60736042）; 河北省自然科学基金（No.A2010000004）; 河北省重点学科资助项目
作者： 王英涛[1], 周璇[1], 张志东[1]
关键词： 双轴, Fréedericksz转变, MONTE, CARLO模拟, bixial, Fréedericksz transition, Monte Carlo simulation
中文摘要：

通过Monte Carlo方法研究了在磁场诱导下的双轴向列相液晶的Fréedericksz转变,在模拟的过程中采用了London色散力近似。考虑3种不同的排列方式,通过改变3个分子轴的磁化率和磁场方向,讨论了9种不同的Fréedericksz转变并分别给出了相应的阈值磁场,通过计算机的模拟实现了短轴u和v的转变,长轴w和短轴u的转变以及长轴w和短轴v的转变。模拟结果表明,在给定假设的情况下满足单一弹性常数近似。研究结果对发展双轴液晶显示器件有一定的理论指导意义。

英文摘要：

With Monte Carlo simulation,this paper investigated Fréedericksz transitions of biaxial nematics induced by an external magnetic field.In the simulation process,the pair potential in London＇s dispersion forces approximation was used.With three different orientations,nine different Fréedericksz transitions were discussed by changing the molecular magnetic susceptibility and the directions of magnetic field.The transition of two short axes u and v,the transition of long axis w and short axis u,and the transition of long axis w and short axis v were all simulated.With the result of simulations,relations of the nine elastic constants can be discussed and they are fit with one elastic constant approximation.The result is practical in the sense that it works as a theoretical basis for developing biaxial display device.

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期刊信息
  • 《液晶与显示》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学院
  • 主办单位:中国科学院长春光学精密机械与物理研究所 中国光学光电子行业协会液晶分会 中国物理学会液晶分会
  • 主编：郭海成
  • 地址：长春市东南湖大路3888号
  • 邮编：130033
  • 邮箱：yjxs@ciomp.ac.cn
  • 电话：0431-86176059
  • 国际标准刊号：ISSN：1007-2780
  • 国内统一刊号：ISSN：22-1259/O4
  • 邮发代号:12-203
  • 获奖情况:
  • 中国科学论文统计源期刊,中国科学引文数据库来源期刊
  • 国内外数据库收录:
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  • 被引量:5470