Optical activity produced by layer chirality in bent-core liquid crystals

被引：22

作者：

Hough, Loren E. ^{[1
]}

Zhu, Chenhui

Nakata, Michi

Chattham, Nattaporn

Dantlgraber, Gert

Tschierske, Carsten

Clark, Noel A.

机构：

[1] Univ Colorado, Dept Phys, LCMRC, Boulder, CO 80309 USA

[2] Kasetsart Univ, Fac Sci, Dept Phys, Bangkok 10900, Thailand

[3] Univ Halle Wittenberg, Inst Organ Chem, D-4010 Halle, Germany

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.98.037802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Large optical activity has recently been observed in chiral smectic liquid crystalline phases formed from achiral bent-core molecules. The origin of the optical activity remains unclear and has been attributed to both a helical superstructure and the layer chirality produced by simultaneous tilt and polar ordering of bent-core mesogens in the B2 phase. Here, we directly demonstrate that layer chirality produces optical activity in the well ordered SmCAPA subphase.

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