Pressure Dependence of Phase Transition Behaviour in Nematic and Isotropic Phases for the Gay-Berne Discogens

Katsuhiko Satoh

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Pressure Dependence of Phase Transition Behaviour in Nematic and Isotropic Phases for the Gay-Berne Discogens

机译：Gay-Berne Discogens在向列和各向同性相中的相变行为的压力依赖性

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We investigated pressure dependence of phase transition behaviour in the nematic-isotropic phase transition with molecular dynamics simulations of the Gay-Berne disc model over a range of pressures from 5.0 to 30.0 before investigating molecular and director dynamics of the system. The nematic-isotropic transition temperature changes non-linearly, which is similar to the change in real nematics. The change in the transition temperature can be fitted with a second order polynomial function. Moreover, the Clapeyron relationship between the systems at two different pressures is also reasonably valid.

机译：在研究系统的分子和指向矢动力学之前，我们在5.0至30.0的压力范围内，通过Gay-Berne圆盘模型的分子动力学模拟研究了向列各向同性相变中相变行为的压力依赖性。向列各向同性转变温度是非线性变化的，这与实际向列相的变化相似。转变温度的变化可以拟合二阶多项式函数。此外，在两个不同压力下系统之间的Clapeyron关系也是合理有效的。

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《Molecular Crystals and Liquid Crystals》 |2010年第1期|p.74-80|共7页
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Katsuhiko Satoh;
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Department of Chemistry, College of General Education, Osaka Sangyo University, Daito, Osaka, Japan;

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1. Pressure Dependence of Phase Transition Behaviour in Nematic and Isotropic Phases for the Gay-Berne Discogens [J] . KATSUHIKO SATOH Molecular crystals and liquid crystals . 2010,第516期

机译：Gay-Berne Discogens在向列和各向同性相中的相变行为的压力依赖性
2. Molecular dynamics simulation of pressure effect on phase transition behaviour and dynamics in the isotropic and discotic nematic phases [J] . Katsuhiko Satoh Thin Solid Films . 2008,第4期

机译：压力影响各向同性和盘状向列相相变行为和动力学的分子动力学模拟
3. Characteristic behavior of short-term dynamics in reorientation for Gay-Berne particles near the nematic-isotropic phase transition temperature [J] . Satoh K The Journal of Chemical Physics . 2006,第20期

机译：在向列各向同性相变温度附近，Gay-Berne粒子在重新取向过程中的短期动力学特征
4. Preparation of aligned carbon nanotubes: Shape-dependence on isotropic to nematic phase transition [C] . Jun Young Oh, Yeonsu Jung, Seung Jae Yang, IEEE International Conference on Nanotechnology . 2015

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5. CRITICAL PHENOMENA AT THE TRANSITION FROM THE ISOTROPIC TO NEMATIC AND CHOLESTERIC PHASES IN LIQUID CRYSTALS. [D] . NICASTRO, ANTHONY JOSEPH. 1981

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6. Effect of Molecular Flexibility on the Nematic-to-Isotropic Phase Transition for Highly Biaxial Molecular Non-Symmetric Liquid Crystal Dimers [O] . Nerea Sebastián, David Orencio López, Sergio Diez-Berart, 2011

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7. Signatures of Electronic Nematic Phase at Isotropic-Nematic Phase Transition [O] . Kee, Hae-Young, Kim, Eugene H., Chung, Chung-Hou 2003

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8. Theory for the Orientational Ordering in Nematic Liquids and for the Phase Diagram of the Nematic-Isotropic Transition [R] . Hazoume, R. P. 1982

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Pressure Dependence of Phase Transition Behaviour in Nematic and Isotropic Phases for the Gay-Berne Discogens

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