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CAS Key Laboratory of Theoretical Physics |
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Institute of Theoretical Physics |
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Chinese Academy of Sciences |
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Seminar |
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Title
题目 |
Contributions of repulsive and attractive interactions to orientational order in liquid crystals |
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Speaker
报告人 |
Prof. Peter Palffy-Muhoray |
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Affiliation
所在单位 |
Liquid Crystal Institute, Kent State University |
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Date
日期 |
2018年7月31日（周二）16:00 |
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Venue
地点 |
Conference Room 322, ITP main building |
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Abstract
摘要 |
Both repulsive and attractive molecular interactions can give rise to orientational order. Using a density functional approach we have examined the relative contributions of these two interactions to nematic order in the high density regime. We find that in the purely steric case, the orientational probability distribution exhibits a unique feature: it has compact support in configuration space. In the presence of attractive interactions, the behavior changes, and at a critical interaction strength, Maier-Saupe type thermotropic behavior is regained. The value of the order parameter at the NI transition may indicate the relative contributions of repulsive and attractive interactions. |
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Contact person
所内联系人 |
Zhongcan OuYang |
