Undulation Instabilities in the Meniscus of Smectic Membranes

Loudet, Jean-Christophe; Долганов, П. В.; Patrício, Pedro; Saadaoui, H.; Cluzeau, P.

doi:10.1103/physrevlett.106.117802

Cited by 32 publications

(39 citation statements)

References 35 publications

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“…This is in accordance with the optical observations in Ref. [16]. The undulation height is a few percent of the local meniscus thickness, for the present example it grows from 4.5 nm near the pattern onset (period ≈1.2 µm) to 75 nm with a period of ≈7.5 µm at a thickness of ≈6 µm.…”

Section: A Characterization Of Stripe Domainssupporting

confidence: 90%

“…Only recently, doubts whether the classical interpretation is correct were put forward [16,17]. An alternative interpretation, based on layer shrinkage at the smectic A-smectic C * phase transition and a bookshelf anchoring of the film at the outer substrate, was proposed by Loudet et al [16]. However, their model is not fully satisfactory as well [17].…”

Section: Introductionmentioning

confidence: 96%

“…These striped textures have been observed by various researchers, but with few exceptions [4,15], their structure has not been considered in detail. Only recently, doubts whether the classical interpretation is correct were put forward [16,17]. An alternative interpretation, based on layer shrinkage at the smectic A-smectic C * phase transition and a bookshelf anchoring of the film at the outer substrate, was proposed by Loudet et al [16].…”

Section: Introductionmentioning

confidence: 98%

“…Thus we assume that they have identical physical origin. Optical interference measurements [16] and AFM studies [16,17] have shown that the director structures in SD are accompanied by film surface undulations.…”

Section: Introductionmentioning

confidence: 99%

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A Gallery of Meniscus Patterns of Free-Standing Smectic Films

2012

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Spontaneously formed stripe patterns covering the menisci of free-standing smectic films have been described already about 40 years ago, but there was no comprehensive optical investigation of their textures so far. Recently, atomic force microscopy, interferometry and polarised light microscopy studies have cast doubts at their classical interpretation as surface-splay induced domains. That interpretation is not able to explain several basic features of the striped domains. Here, we review some characteristic properties of the stripe domains and related patterns, i.e. textures that decorate regions with film thickness gradients. We discuss changes during phase transitions of the smectic films to collect information on the complex internal structure of the observed patterns.

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Section: A Characterization Of Stripe Domainssupporting

confidence: 90%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

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A Gallery of Meniscus Patterns of Free-Standing Smectic Films

2012

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“…www.afm-journal.de www.MaterialsViews.com phases. [ 54 ] SCE-12 molecules contain phenyl and biphenyl cores linked together by carbonyl bonds.…”

Section: Discussionmentioning

confidence: 99%

Controlling the Self‐Assembly of Periodic Defect Patterns in Smectic Liquid Crystal Films with Electric Fields

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et al. 2014

Adv Funct Materials

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All Solution-Processed Chalcogenide Solar Cells-from Single Functional Layers Towards a 13.8% Effi cient CIGS Device FEATURE ARTICLE Photovoltaic Devices A Cu(In,Ga)Se 2 thin fi lm solar cell with effi ciency of 13.8% is demonstrated where all constituent layers (except the metal back contact) are processed from aqueous solutions of metal salts using industrially scalable processes. Carbon Nanotube Networks The temperature-dependent electrical transport in polymer-sorted semicon-ducting carbon nanotube networks is elucidated in this work. The source-drain current and mobility in polymer-sorted carbon nanotube network-based fi eld-effect transistors decrease with decreasing temperature attributable to fl uctuation-induced tunneling. The barrier for charge transport inversely correlates with carbon nanotube network thickness, for the probability to sample conductive pathways with fewer inter-tube junctions increases with increasing thickness.

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Freely Floating Smectic Films

et al. 2014

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We have investigated the dynamics of freely floating smectic bubbles using high-speed optical imaging. Bubbles in the size range from a few hundred micrometers to several centimeters were prepared from collapsing catenoids. They represent ideal model systems for the study of thin-film fluid dynamics under well-controlled conditions. Owing to the internal smectic layer structure, the bubbles combine features of both soap films and vesicles in their unique shape dynamics. From a strongly elongated initial shape after pinch-off, they relax towards the spherical equilibrium, first by a slow redistribution of the smectic layers, and finally by weak, damped shape oscillations. In addition, we describe the rupture of freely floating smectic bubbles, and the formation and stability of smectic filaments.

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Undulation Instabilities in the Meniscus of Smectic Membranes

Cited by 32 publications

References 35 publications

A Gallery of Meniscus Patterns of Free-Standing Smectic Films

A Gallery of Meniscus Patterns of Free-Standing Smectic Films

Controlling the Self‐Assembly of Periodic Defect Patterns in Smectic Liquid Crystal Films with Electric Fields

Freely Floating Smectic Films

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