Microscopic origin of cholesteric pitch

被引:108
作者
Harris, AB
Kamien, RD
Lubensky, TC
机构
[1] Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA
关键词
D O I
10.1103/PhysRevLett.78.1476
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We present a microscopic analysis of the instability of the nematic phase to chirality when molecular chirality is introduced perturbatively. We show that for central-force interactions the previously neglected short-range biaxial correlations play a crucial role in determining the cholesteric pitch. We propose a pseudoscalar strength which quantifies the chirality of a molecule.
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页码:1476 / 1479
页数:4
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