Determination of the translational order parameter for smectic liquid crystals using small-angle neutron scattering

G.G Alexander; R.M Richardson; S. M King; H. Zimmermann

doi:10.1080/02678292.2010.481902

Determination of the translational order parameter for smectic liquid crystals using small-angle neutron scattering

G.G Alexander, R.M Richardson, S. M King, H. Zimmermann

School of Physics

Research output: Contribution to journal › Article (Academic Journal) › peer-review

10 Citations (Scopus)

Abstract

A simple method to determine the translational order parameter of a smectic liquid crystal is presented. It is based on a measurement of the absolute intensity of the first-order layer reflection from an unaligned (powder) sample using small-angle neutron scattering. The Lorentz factor and molecular form factor are used to derive the order parameter from the intensity. The method is demonstrated for 4-octyl-4'-cyanobiphenyl (8CB), using two different isotopomers which give a consistent translational order parameter value of 0.5 in the smectic A phase.

Translated title of the contribution	Determination of the translational order parameter for smectic liquid crystals using small-angle neutron scattering
Original language	English
Pages (from-to)	961 - 968
Number of pages	8
Journal	Liquid Crystals
Volume	37
Issue number	6-7
DOIs	https://doi.org/10.1080/02678292.2010.481902
Publication status	Published - Jun 2010

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title = "Determination of the translational order parameter for smectic liquid crystals using small-angle neutron scattering",

abstract = "A simple method to determine the translational order parameter of a smectic liquid crystal is presented. It is based on a measurement of the absolute intensity of the first-order layer reflection from an unaligned (powder) sample using small-angle neutron scattering. The Lorentz factor and molecular form factor are used to derive the order parameter from the intensity. The method is demonstrated for 4-octyl-4'-cyanobiphenyl (8CB), using two different isotopomers which give a consistent translational order parameter value of 0.5 in the smectic A phase.",

author = "G.G Alexander and R.M Richardson and King, {S. M} and H. Zimmermann",

year = "2010",

month = jun,

doi = "10.1080/02678292.2010.481902",

language = "English",

volume = "37",

pages = "961 -- 968",

journal = "Liquid Crystals",

issn = "0267-8292",

publisher = "Taylor & Francis Group",

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TY - JOUR

T1 - Determination of the translational order parameter for smectic liquid crystals using small-angle neutron scattering

AU - Alexander, G.G

AU - Richardson, R.M

AU - King, S. M

AU - Zimmermann, H.

PY - 2010/6

Y1 - 2010/6

N2 - A simple method to determine the translational order parameter of a smectic liquid crystal is presented. It is based on a measurement of the absolute intensity of the first-order layer reflection from an unaligned (powder) sample using small-angle neutron scattering. The Lorentz factor and molecular form factor are used to derive the order parameter from the intensity. The method is demonstrated for 4-octyl-4'-cyanobiphenyl (8CB), using two different isotopomers which give a consistent translational order parameter value of 0.5 in the smectic A phase.

AB - A simple method to determine the translational order parameter of a smectic liquid crystal is presented. It is based on a measurement of the absolute intensity of the first-order layer reflection from an unaligned (powder) sample using small-angle neutron scattering. The Lorentz factor and molecular form factor are used to derive the order parameter from the intensity. The method is demonstrated for 4-octyl-4'-cyanobiphenyl (8CB), using two different isotopomers which give a consistent translational order parameter value of 0.5 in the smectic A phase.

UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-77954249095&partnerID=8YFLogxK

U2 - 10.1080/02678292.2010.481902

DO - 10.1080/02678292.2010.481902

M3 - Article (Academic Journal)

SN - 0267-8292

VL - 37

SP - 961

EP - 968

JO - Liquid Crystals

JF - Liquid Crystals

IS - 6-7

ER -

Determination of the translational order parameter for smectic liquid crystals using small-angle neutron scattering

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STRUCTURE AT HOMEOTROPIC LIQUID CRYSTAL SURFACES

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Determination of the translational order parameter for smectic liquid crystals using small-angle neutron scattering

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STRUCTURE AT HOMEOTROPIC LIQUID CRYSTAL SURFACES

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