Faceting and stability of smectic A droplets on a solid substrate.

The European Physical Journal. E, Soft Matter
P Oswald, L Lejcek

Abstract

It is shown that a smectic A droplet deposited on a solid substrate treated for strong homeotropic anchoring is faceted at the top in spite of the fact that there are no steps at the free surface, but instead edge dislocations in the bulk. The radius of the facet and the full profile of the curved part of the droplet are determined as a function of the temperature in the vicinity of a nematic-smectic A phase transition. It is shown that the observed profiles do not correspond to the actual equilibrium shape, but to metastable configurations close to their point of marginal stability. In addition, we predict that the profiles must be different for a given temperature depending on whether the droplet has been heated or cooled down to reach this temperature. Finally, we discuss the problem of the formation of giant dislocations in big droplets (Grandjean terraces).

References

Jun 1, 1985·Physical Review A: General Physics·P PieranskiP E Cladis
Oct 6, 2000·Physical Review Letters·P PieranskiM Imperor-Clerc
Nov 23, 2000·Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics·F PicanoP Oswald
Jan 4, 2001·Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics·A ZywocinskiJ C Geminard
Mar 15, 2003·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·R Jaquet, F Schneider
Mar 10, 2004·The European Physical Journal. E, Soft Matter·P PieranskiS Popa-Nita

❮ Previous
Next ❯

Citations

Mar 25, 2011·The Journal of Chemical Physics·D Ausserré, J-L Buraud
Mar 7, 2015·The European Physical Journal. E, Soft Matter·Elena S PikinaWim H de Jeu
Dec 13, 2006·Physical Review Letters·Andrew B CrollKari Dalnoki-Veress
Nov 30, 2011·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Ákos Lédeczi, Miklós Maróti
Mar 31, 2015·American Journal of Medical Genetics. Part a·Gert de GraafBrian G Skotko
Aug 8, 2009·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Wei Guo, Christian Bahr

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
C Völtz, R Stannarius
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
P V DolganovP Cluzeau
Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
F PicanoP Oswald
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
Wei Guo, Christian Bahr
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
Yasutaka IwashitaChristian Bahr
© 2022 Meta ULC. All rights reserved