Structural and optical properties of free-standing smectic films

Izabela Śliwa , Alex V. Zakharov

Abstract

We have carried out a complex numerical study of the structural, thermodynamic and optical properties of the partially fluorinated 5-n -alkyl-2-(4-n-(perfluoroalkyl-metheleneoxy)phenyl) free-standing smectic film in air under the action of the external electric field E . Calculations, based upon the extended McMillan’s mean-field theory with anisotropic forces, show a stepwise reduction of the value of the Helmholtz free energy and the reflectivity of the partially fluorinated smectic film in air, as the temperature is raised above the bulk smectic-A-isotropic transition value. It has been shown, by solving the self-consistent nonlinear equations for the orientational and translational order parameters, that the electric field E may not only affect the layer-thinning transition sequences, but also change the first multilayer jump in the film thickness, whereas practically does not affect the reflectivity R(N) of the partially fluorinated N -layer smectic film in air. In the range of film thicknesses investigated, the reduction of the R(N) is, at least, qualitatively in agreement with the experimentally observed decrease of the optical reflectivity with the decrease of N.
Author Izabela Śliwa (WIiGE / KEM)
Izabela Śliwa,,
- Department of Mathematical Economics
, Alex V. Zakharov
Alex V. Zakharov,,
-
Journal seriesEuropean Physical Journal E, ISSN 1292-8941, e-ISSN 1292-895X, (N/A 40 pkt)
Issue year2019
Vol78
No42
Pages1-9
Publication size in sheets0.5
Keywords in Polishciekłe kryształy
Keywords in EnglishLiquid crystals
ASJC Classification1304 Biophysics; 1305 Biotechnology; 1600 General Chemistry; 2500 General Materials Science; 3110 Surfaces and Interfaces
DOIDOI:10.1140/epje/i2019-11842-7
URL https://link.springer.com/article/10.1140/epje/i2019-11842-7
Languageen angielski
Score (nominal)40
Score sourcejournalList
ScoreMinisterial score = 40.0, 07-04-2020, ArticleFromJournal
Publication indicators WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2018 = 0.642; WoS Impact Factor: 2018 = 1.686 (2) - 2018=1.57 (5)
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UwagiFirst Online: 24 June 2019
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