LONG-RANGE ORDER IN 2-DIMENSIONAL AND 3-DIMENSIONAL SMECTIC-B LIQUID-CRYSTAL FILMS

被引:188
作者
MONCTON, DE
PINDAK, R
机构
[1] Bell Laboratories, Murray Hill
关键词
D O I
10.1103/PhysRevLett.43.701
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
This Letter presents x-ray studies of freely suspended smectic liquid-crystal films from 2 to >100 layers thick. Smectic-B thick films of butyloxybenzylidene octylaniline (40.8) have three-dimensional long-range order while thin films are two-dimensional crystals. Large diffuse scattering is observed from soft shear waves, propagating perpendicular to the layers, and three new low-temperature phases with different interlayer order in thick films are found. © 1979 The American Physical Society.
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页码:701 / 704
页数:4
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