Polarization periodicity in the B1 columnar phase determined by resonant x-ray scattering

被引：5

作者：

Folcia, C. L. ^{[1
]}

Ortega, J. ^{[1
]}

Etxebarria, J. ^{[1
]}

Pan, LiDong ^{[2
]}

Wang, Shun ^{[2
]}

Huang, C. C. ^{[2
]}

Ponsinet, V. ^{[3
]}

Barois, P. ^{[3
]}

Pindak, R. ^{[4
]}

Gimeno, N. ^{[5
]}

机构：

[1] Univ Basque Country, Fac Ciencia & Tecnol, E-48080 Bilbao, Spain

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

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

[4] Brookhaven Natl Lab, Photon Sci Directorate, Upton, NY 11973 USA

[5] Univ Zaragoza, Fac Ciencias, ICMA, CSIC, E-50009 Zaragoza, Spain

来源：

PHYSICAL REVIEW E | 2011年 / 84卷 / 01期

关键词：

CORE LIQUID-CRYSTALS; FIELD;

D O I：

10.1103/PhysRevE.84.010701

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We report structural results that evidence the polarization distribution of the blocks in the columnar phase of an achiral bent-core liquid crystal. The study was performed using resonant x-ray diffraction at the sulfur K edge on oriented samples aligned on substrates. The extra periodicity is revealed through the violation of the systematic extinction rule of the structural symmetry group along the experimentally accessible diffraction direction. Further data obtained from the polarization analysis of a resonant reflection give information concerning the transition mechanism between B-1 and B-2 phases.

引用

页数：5

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