Symmetry-breaking morphological transitions at chemically nanopatterned walls.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F19%3A00518533" target="_blank" >RIV/67985858:_____/19:00518533 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22340/19:43918404

Result on the web

<a href="http://arxiv.org/pdf/1912.12111" target="_blank" >http://arxiv.org/pdf/1912.12111</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevE.100.062802" target="_blank" >10.1103/PhysRevE.100.062802</a>

Result language

angličtina

Original language name

Symmetry-breaking morphological transitions at chemically nanopatterned walls.

Original language description

We study the structure and morphological changes of fluids that are in contact with solid composites formed by alternating and microscopically wide stripes of two different materials. One type of the stripes interacts with the fluid via long-ranged Lennard-Jones-like potential and tends to be completely wet, while the other type iis purely repulsive and thus tends to be completely dry. We consider closed systems with a fixed number of particles that allows for stabilization of fluid configurations breaking the lateral symmetry of the wall potential. These include liquid morphologies corresponding to a sessile drop that is formed by a sequence of bridging transitions that connect neighboring wet regions adsorbed at the attractive stripes. We study the character of the transitions depending on the wall composition, stripes width, and system size. Using a (classical) nonlocal density functional theory (DFT), we show that the transitions between different liquid morphologies are typically weakly first-order but become rounded if the wavelength of the system is lower than a certain critical value Lc. We also argue that in the thermodynamic limit, i.e., for macroscopically large systems, the wall becomes wet via an infinite sequence of first-order bridging transitions that are, however, getting rapidly weaker and weaker and eventually become indistinguishable from a continuous process as the size of the bridging drop increases.nFinally, we construct the global phase diagram and study the density dependence of the contact angle of the bridging drops using DFT density profiles and a simple macroscopic theory.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10403 - Physical chemistry

Project

<a href="/en/project/GA17-25100S" target="_blank" >GA17-25100S: Geometrically and Chemically Modified Surfaces: From Statics to Dynamics</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physical Review E

ISSN

2470-0045

e-ISSN

—

Volume of the periodical

100

Issue of the periodical within the volume

6

Country of publishing house

US - UNITED STATES

Number of pages

12

Pages from-to

062802

UT code for WoS article

000504639000016

EID of the result in the Scopus database

2-s2.0-85077359235