Molecular organization in freely suspended nano-thick 8CB smectic films. An atomistic simulation
PALERMA, Mattia Felice
Dipartimento di Chimica Industriale ‘‘Toso Montanari’’
National Interuniversity Consortium of Materials Science and Technology [INSTM ]
Dipartimento di Chimica Industriale ‘‘Toso Montanari’’
National Interuniversity Consortium of Materials Science and Technology [INSTM ]
MUCCIOLI, Luca
Dipartimento di Chimica Industriale ‘‘Toso Montanari’’
National Interuniversity Consortium of Materials Science and Technology [INSTM ]
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
Dipartimento di Chimica Industriale ‘‘Toso Montanari’’
National Interuniversity Consortium of Materials Science and Technology [INSTM ]
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
ZANNONI, Claudio
Dipartimento di Chimica Industriale ‘‘Toso Montanari’’
National Interuniversity Consortium of Materials Science and Technology [INSTM ]
Dipartimento di Chimica Industriale ‘‘Toso Montanari’’
National Interuniversity Consortium of Materials Science and Technology [INSTM ]
PALERMA, Mattia Felice
Dipartimento di Chimica Industriale ‘‘Toso Montanari’’
National Interuniversity Consortium of Materials Science and Technology [INSTM ]
Dipartimento di Chimica Industriale ‘‘Toso Montanari’’
National Interuniversity Consortium of Materials Science and Technology [INSTM ]
MUCCIOLI, Luca
Dipartimento di Chimica Industriale ‘‘Toso Montanari’’
National Interuniversity Consortium of Materials Science and Technology [INSTM ]
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
Dipartimento di Chimica Industriale ‘‘Toso Montanari’’
National Interuniversity Consortium of Materials Science and Technology [INSTM ]
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
ZANNONI, Claudio
Dipartimento di Chimica Industriale ‘‘Toso Montanari’’
National Interuniversity Consortium of Materials Science and Technology [INSTM ]
< Réduire
Dipartimento di Chimica Industriale ‘‘Toso Montanari’’
National Interuniversity Consortium of Materials Science and Technology [INSTM ]
Langue
en
Article de revue
Ce document a été publié dans
Physical Chemistry Chemical Physics. 2015, vol. 17, n° 39, p. 26149-26159
Royal Society of Chemistry
Résumé en anglais
We present an atomistic molecular dynamics simulation of freely suspended films of the smectic liquid crystal 8CB formed by n(l) = 2, 3,...,10, 20 theoretical monolayers, determining their orientational and positional order ...Lire la suite >
We present an atomistic molecular dynamics simulation of freely suspended films of the smectic liquid crystal 8CB formed by n(l) = 2, 3,...,10, 20 theoretical monolayers, determining their orientational and positional order as a function of the film thickness. We find that films are always composed by bilayers of antiparallel molecules, and that in the case of odd n(l), the system prefers to self-assemble in (n(l) + 1)/2 bilayers, with an increase of surface tension with respect to even n(l) samples. We also show that external layers have higher positional and orientational order, and that upon heating the disordering of the system proceeds from the inside, with the central layers progressively losing their smectic character, while the external ones are more resistant to temperature changes and keep the film from breaking.< Réduire
Mots clés en anglais
LIQUID-CRYSTAL FILMS
A-PHASE
X-RAY
DYNAMICS SIMULATIONS
SURFACE-TENSION
TRANSITION
FLUCTUATIONS
MODEL
ORIENTATION
SCATTERING
Origine
Importé de halUnités de recherche