Unusual thickness-dependent thermal behavior in chiral smectic free-standing liquid-crystal films

C. Y. Chao; C. R. Lo; Y. H. Liu; D. R. Link; J. E. Maclennan; N. A. Clark; M. Veum; C. C. Huang; J. T. Ho

doi:10.1080/15421400490440309

Unusual thickness-dependent thermal behavior in chiral smectic free-standing liquid-crystal films

C. Y. Chao, C. R. Lo, Y. H. Liu, D. R. Link, J. E. Maclennan, N. A. Clark, M. Veum, C. C. Huang, J. T. Ho

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

We observe, in free-standing films of a chiral smectic liquid crystal, a series of discrete transitions in the relative orientation of the tilt of the interior and surface layers. These transitions include a remarkable reentrant synclinicanticlinic-synclinic ordering sequence of the film surfaces in the presence of an electric field upon cooling. The profiles of the associated heat-capacity anomalies are found to be strongly thickness-dependent and exhibit a novel crossover behavior in reduced dimensions.

Original language	English (US)
Journal	Molecular Crystals and Liquid Crystals
Volume	412
DOIs	https://doi.org/10.1080/15421400490440309
State	Published - Dec 1 2004

Keywords

Heat capacity
Liquid-crystal films
Phase transition
Synclinic and anticlinic ordering

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title = "Unusual thickness-dependent thermal behavior in chiral smectic free-standing liquid-crystal films",

abstract = "We observe, in free-standing films of a chiral smectic liquid crystal, a series of discrete transitions in the relative orientation of the tilt of the interior and surface layers. These transitions include a remarkable reentrant synclinicanticlinic-synclinic ordering sequence of the film surfaces in the presence of an electric field upon cooling. The profiles of the associated heat-capacity anomalies are found to be strongly thickness-dependent and exhibit a novel crossover behavior in reduced dimensions.",

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doi = "10.1080/15421400490440309",

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T1 - Unusual thickness-dependent thermal behavior in chiral smectic free-standing liquid-crystal films

AU - Chao, C. Y.

AU - Lo, C. R.

AU - Liu, Y. H.

AU - Link, D. R.

AU - Maclennan, J. E.

AU - Clark, N. A.

AU - Veum, M.

AU - Huang, C. C.

AU - Ho, J. T.

PY - 2004/12/1

Y1 - 2004/12/1

N2 - We observe, in free-standing films of a chiral smectic liquid crystal, a series of discrete transitions in the relative orientation of the tilt of the interior and surface layers. These transitions include a remarkable reentrant synclinicanticlinic-synclinic ordering sequence of the film surfaces in the presence of an electric field upon cooling. The profiles of the associated heat-capacity anomalies are found to be strongly thickness-dependent and exhibit a novel crossover behavior in reduced dimensions.

AB - We observe, in free-standing films of a chiral smectic liquid crystal, a series of discrete transitions in the relative orientation of the tilt of the interior and surface layers. These transitions include a remarkable reentrant synclinicanticlinic-synclinic ordering sequence of the film surfaces in the presence of an electric field upon cooling. The profiles of the associated heat-capacity anomalies are found to be strongly thickness-dependent and exhibit a novel crossover behavior in reduced dimensions.

KW - Heat capacity

KW - Liquid-crystal films

KW - Phase transition

KW - Synclinic and anticlinic ordering

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DO - 10.1080/15421400490440309

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SN - 1542-1406

VL - 412

JO - Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals

ER -

Unusual thickness-dependent thermal behavior in chiral smectic free-standing liquid-crystal films

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