Topology of orientational defects in confined smectic liquid crystals

PA Monderkamp, R Wittmann, LBG Cortes… - Physical Review Letters, 2021 - APS
We propose a general formalism to characterize orientational frustration of smectic liquid
crystals in confinement by interpreting the emerging networks of grain boundaries as objects …

Particle-resolved topological defects of smectic colloidal liquid crystals in extreme confinement

R Wittmann, LBG Cortes, H Löwen… - Nature …, 2021 - nature.com
Confined samples of liquid crystals are characterized by a variety of topological defects and
can be exposed to external constraints such as extreme confinements with nontrivial …

Design rules for 2D field mediated assembly of different shaped colloids into diverse microstructures

RS Hendley, L Zhang, MA Bevan - Soft Matter, 2022 - pubs.rsc.org
Assembling different shaped particles into ordered microstructures is an open challenge in
creating multifunctional particle-based materials and devices. Here, we report the two …

Multistate dynamic pathways for anisotropic colloidal assembly and reconfiguration

RS Hendley, L Zhang, MA Bevan - ACS nano, 2023 - ACS Publications
We report the controlled interfacial assembly and reconfiguration of rectangular prism
colloidal particles between microstructures of varying positional and orientational order …

Assembly of gold nanowires on gold nanostripe arrays: simulation and experiment

O Jahanmahin, DJ Kirby, BD Smith… - The Journal of …, 2020 - ACS Publications
Nanowires (NWs) have a large aspect ratio and large available surface area, which have
made them a potential platform for applications in biosensors as well as electronic/optic and …

Topological defects in two-dimensional liquid crystals confined by a box

X Yao, H Zhang, JZY Chen - Physical Review E, 2018 - APS
When a spatially uniform system that displays a liquid-crystal ordering on a two-dimensional
surface is confined inside a rectangular box, the liquid crystal direction field develops …

Topological fine structure of smectic grain boundaries and tetratic disclination lines within three-dimensional smectic liquid crystals

PA Monderkamp, R Wittmann, M Te Vrugt… - Physical Chemistry …, 2022 - pubs.rsc.org
Observing and characterizing the complex ordering phenomena of liquid crystals subjected
to external constraints constitutes an ongoing challenge for chemists and physicists alike. To …

Defect patterns of two-dimensional nematic liquid crystals in confinement

X Yao, L Zhang, JZY Chen - Physical Review E, 2022 - APS
A two-dimensional or quasi-two-dimensional nematic liquid crystal refers to a surface-
confined system. When such a system is further confined by external line boundaries or …

Reduced-variance orientational distribution functions from torque sampling

J Renner, M Schmidt… - Journal of Physics …, 2023 - iopscience.iop.org
We introduce a method to sample the orientational distribution function in computer
simulations. The method is based on the exact torque balance equation for classical many …

Colloidal liquid crystals in square confinement: isotropic, nematic and smectic phases

LBG Cortes, Y Gao, RPA Dullens… - Journal of Physics …, 2016 - iopscience.iop.org
We report on the confinement of colloidal liquid crystals in three dimensional chambers with
a square footprint. To this end we use colloidal silica rods and exploit their relatively large …