Dynamic wrinkling of freely floating smectic films.
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DOI: 10.1039/c9sm01181a
Abstract: We demonstrate spontaneous wrinkling as a transient dynamical pattern in thin freely floating smectic liquid-crystalline films. The peculiarity of such films is that, while behaving liquid-like with respect to flow in the film plane, they… read more here.
Keywords: wrinkling freely; floating smectic; smectic films; dynamic wrinkling ... See more keywords
Shape instabilities of islands in smectic films under lateral compression.
Sign Up to like & getrecommendations! Published in 2022 at "Soft matter"
DOI: 10.1039/d2sm00144f
Abstract: Smectic liquid crystals are fluids, and in most rheological situations they behave as such. Nevertheless, when thin freely floating films of smectic A or smectic C materials are compressed quickly in-plane, they resist such stress… read more here.
Keywords: smectic films; islands smectic; films lateral; shape instabilities ... See more keywords
Rapid thickness mapping of free-standing smectic films using colour information of reflected light
Sign Up to like & getrecommendations! Published in 2020 at "Liquid Crystals"
DOI: 10.1080/02678292.2020.1825843
Abstract: ABSTRACT A practical method to rapidly obtain the 2D thickness distribution in free-standing smectic films is developed based on the colour information of reflected image of the film. The red(R), green(G) and blue(B) colour coordinates… read more here.
Keywords: free standing; colour information; information reflected; smectic films ... See more keywords
Landau theory for smectic-A-hexatic-B coexistence in smectic films.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review. E"
DOI: 10.1103/physreve.100.022705
Abstract: We explain theoretical peculiarities of the smectic-A-hexatic-B equilibrium phase coexistence in a finite-temperature range recently observed experimentally in free-standing smectic films [I. A. Zaluzhnyy et al., Phys. Rev. E 98, 052703 (2018)2470-004510.1103/PhysRevE.98.052703]. We quantitatively describe… read more here.
Keywords: smectic hexatic; coexistence; phase coexistence; theory smectic ... See more keywords
Annihilation trajectory of defects in smectic-C films.
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DOI: 10.1103/physreve.102.012702
Abstract: In a two-dimensional liquid crystal, each topological defect has a topological charge and a characteristic orientation and hence can be regarded as an oriented particle. Theories predict that the trajectories of annihilating defects depend on… read more here.
Keywords: annihilation trajectory; smectic films; trajectory defects; defects smectic ... See more keywords
Circulating Marangoni flows within droplets in smectic films.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review. E"
DOI: 10.1103/physreve.106.055105
Abstract: We present a theoretical study and numerical simulation of Marangoni convection within ellipsoidal isotropic droplets embedded in free-standing smectic films (FSSFs). The thermocapillary flows are analyzed for both isotropic droplets spontaneously formed in FSSF overheated… read more here.
Keywords: convection; flows within; smectic films; surface ... See more keywords