Resonant X-ray scattering studies of the B2 phase formed by bent-core molecules

被引：16

作者：

Cady, A ^{[1
]}

Pindak, R

Caliebe, W

Barois, P

Weissflog, W

Nguyen, HT

Huang, CC

机构：

[1] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA

[2] Brookhaven Natl Lab, NSLS, Upton, NY 11973 USA

[3] Univ Bordeaux 1, Ctr Rech Paul Pascal, CNRS, F-33600 Pessac, France

[4] Univ Halle Wittenberg, Inst Phys Chem, D-06108 Halle Saale, Germany

来源：

LIQUID CRYSTALS | 2002年 / 29卷 / 08期

关键词：

D O I：

10.1080/02678290210156704

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have performed resonant X-ray scattering on two bent-core liquid crystal compounds exhibiting the B2 phase using three sample geometries: free-standing film and two others with free surface arrangements. The results conclusively demonstrate the two-layer orientational periodicity in this phase suggested by optical studies. We have performed the first resonant scattering experiments on liquid crystals at the chlorine K-edge, opening up a new class of compounds for resonant X-ray scattering studies. Furthermore, we have achieved an excellent alignment of the B2 phase with a free surface.

引用

页码：1101 / 1104

页数：4

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