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Title: Unique Pitch Evolution in the Smectic -C-alpha* Phase

Abstract

Employing resonant x-ray diffraction, we observed unique pitch evolutions in the smectic-C{alpha}* phase in mixtures of two antiferroelectric liquid crystals. Our results show that the pitch in this phase continuously evolves across 4 layers, contradicting a theoretical model that predicts that the smectic-C{sub FI2}* phase intervenes in the smectic-C{alpha}* phase. The phase sequences we found can be explained by another model that includes one type of long-range interaction among smectic layers.

Authors:
; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
930521
Report Number(s):
BNL-80520-2008-JA
Journal ID: ISSN 0031-9007; PRLTAO; TRN: US200904%%764
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 99; Journal Issue: 7; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ANTIFERROELECTRIC MATERIALS; INTERACTION RANGE; LIQUID CRYSTALS; MIXTURES; X-RAY DIFFRACTION; national synchrotron light source

Citation Formats

Liu, Z, McCoy, B, Wang, S, Pindak, R, Caliebe, W, Barois, P, Fernandes, P, Nguyen, H, Hsu, C, and Wang,. Unique Pitch Evolution in the Smectic -C-alpha* Phase. United States: N. p., 2007. Web. doi:10.1103/PhysRevLett.99.077802.
Liu, Z, McCoy, B, Wang, S, Pindak, R, Caliebe, W, Barois, P, Fernandes, P, Nguyen, H, Hsu, C, & Wang,. Unique Pitch Evolution in the Smectic -C-alpha* Phase. United States. https://doi.org/10.1103/PhysRevLett.99.077802
Liu, Z, McCoy, B, Wang, S, Pindak, R, Caliebe, W, Barois, P, Fernandes, P, Nguyen, H, Hsu, C, and Wang,. 2007. "Unique Pitch Evolution in the Smectic -C-alpha* Phase". United States. https://doi.org/10.1103/PhysRevLett.99.077802.
@article{osti_930521,
title = {Unique Pitch Evolution in the Smectic -C-alpha* Phase},
author = {Liu, Z and McCoy, B and Wang, S and Pindak, R and Caliebe, W and Barois, P and Fernandes, P and Nguyen, H and Hsu, C and Wang,},
abstractNote = {Employing resonant x-ray diffraction, we observed unique pitch evolutions in the smectic-C{alpha}* phase in mixtures of two antiferroelectric liquid crystals. Our results show that the pitch in this phase continuously evolves across 4 layers, contradicting a theoretical model that predicts that the smectic-C{sub FI2}* phase intervenes in the smectic-C{alpha}* phase. The phase sequences we found can be explained by another model that includes one type of long-range interaction among smectic layers.},
doi = {10.1103/PhysRevLett.99.077802},
url = {https://www.osti.gov/biblio/930521}, journal = {Physical Review Letters},
issn = {0031-9007},
number = 7,
volume = 99,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}