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Molecular dynamics above the smectic A-isotropic phase transition of thermotropic liquid crystals studied by NMR

Vaca Chavez, Fabian LU ; Acosta, RH and Pusiol, DJ (2004) In Chemical Physics Letters 392(4-6). p.403-408
Abstract
This Letter presents a proton fast field cycling Nuclear Magnetic Resonance study of the molecular dynamics in the region above the smectic A-isotropic phase transition in thermotropic liquid crystals. The proton spin-lattice relaxation time was measured as a function of temperature at different Larmor frequencies and the experimental results were interpreted in term of the Landau De Gennes theory. Mechanisms provided by both individual reorientational fluctuations and fluctuations of the local order parameter can be distinguished at the different Larmor frequency scales.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Chemical Physics Letters
volume
392
issue
4-6
pages
403 - 408
publisher
Elsevier
external identifiers
  • wos:000222553100021
  • scopus:3042577243
ISSN
0009-2614
DOI
10.1016/j.cplett.2004.05.055
language
English
LU publication?
yes
id
44157396-0fa3-4ff5-abbf-8b22fde7edf1 (old id 272896)
date added to LUP
2007-10-17 16:45:22
date last changed
2017-01-01 07:10:49
@article{44157396-0fa3-4ff5-abbf-8b22fde7edf1,
  abstract     = {This Letter presents a proton fast field cycling Nuclear Magnetic Resonance study of the molecular dynamics in the region above the smectic A-isotropic phase transition in thermotropic liquid crystals. The proton spin-lattice relaxation time was measured as a function of temperature at different Larmor frequencies and the experimental results were interpreted in term of the Landau De Gennes theory. Mechanisms provided by both individual reorientational fluctuations and fluctuations of the local order parameter can be distinguished at the different Larmor frequency scales.},
  author       = {Vaca Chavez, Fabian and Acosta, RH and Pusiol, DJ},
  issn         = {0009-2614},
  language     = {eng},
  number       = {4-6},
  pages        = {403--408},
  publisher    = {Elsevier},
  series       = {Chemical Physics Letters},
  title        = {Molecular dynamics above the smectic A-isotropic phase transition of thermotropic liquid crystals studied by NMR},
  url          = {http://dx.doi.org/10.1016/j.cplett.2004.05.055},
  volume       = {392},
  year         = {2004},
}