Zobrazeno 1 - 10
of 158
pro vyhledávání: '"Wensink, H. H."'
Autor:
Wensink, H. H., Grelet, E.
Elongated colloidal rods at sufficient packing conditions are known to form stable lamellar or smectic phases. Using a simplified volume-exclusion model, we propose a generic equation-of-state for hard-rod smectics that is robust against simulation r
Externí odkaz:
http://arxiv.org/abs/2304.13701
Publikováno v:
Phys. Rev. E 104, 014703 (2021)
Colloidal rods immersed in a thermotropic liquid-crystalline solvent are at the basis of so-called hybrid liquid crystals which are characterized by tunable nematic fluidity with symmetries ranging from conventional uniaxial nematic or anti-nematic t
Externí odkaz:
http://arxiv.org/abs/2104.03730
Publikováno v:
Physical Review Letters 125 (2020) 127803
Using a minimal algebraic model for the thermodynamics of binary rod--polymer mixtures, we provide evidence for a quintuple phase equilibrium; an observation that seems to be at odds with the Gibbs phase rule for two-component systems. Our model is b
Externí odkaz:
http://arxiv.org/abs/2009.08879
Publikováno v:
Phys. Rev. E 101, 062707 (2020)
Based on simplifications of previous numerical calculations [Graf and L\"{o}wen, Phys. Rev. E \textbf{59}, 1932 (1999)], we propose algebraic free energy expressions for the smectic-A liquid crystal phase and the crystal phases of hard spherocylinder
Externí odkaz:
http://arxiv.org/abs/2006.01555
Autor:
Wensink, H. H.
Publikováno v:
Macromolecules 52, 7994 (2019)
Rod-shaped colloids with attractive tips can form linear aggregates that may subsequently undergo hierarchical self-assembly into nematic fluids. Inspired by recent modelling efforts on chromonic liquid crystals, composed of discotic building blocks,
Externí odkaz:
http://arxiv.org/abs/1910.01497
Autor:
Wensink, H. H.
Publikováno v:
Crystals 9(3), 143 (2019)
Many nanoparticle-based chiral liquid crystals are composed of polydisperse rod-shaped particles with considerable spread in size or shape, affecting the mesoscale chiral properties in, as yet, unknown ways. Using an algebraic interpretation of Onsag
Externí odkaz:
http://arxiv.org/abs/1903.06093
Autor:
Wensink, H. H.
Publikováno v:
Soft Matter, 2018, 14, 8935 - 8944
Mixing colloid shapes with distinctly different anisotropy generates composite nematics in which the order of the individual components can be fundamentally different. In colloidal rod-disk mixtures or hybrid nematics composed of anisotropic colloids
Externí odkaz:
http://arxiv.org/abs/1810.06988
Autor:
Wensink, H. H., Anda, L. Morales
Publikováno v:
J. Phys.: Condens. Matter 30, 075101 (2018)
Chiral rodlike colloids exposed to strong depletion attraction may self-assemble into chiral membranes whose twisted director field differs from that of a 3D bulk chiral nematic. We formulate a simple microscopic variational theory to determine the e
Externí odkaz:
http://arxiv.org/abs/1801.02706
Publikováno v:
Scientific Reports 7, 17058 (2017)
Entropy-driven equilibrium phase behaviour of hard particle dispersions can be understood from excluded volume arguments only. While monodisperse hard spheres only exhibit a fluid-solid phase transition, anisotropic hard particles such as rods, discs
Externí odkaz:
http://arxiv.org/abs/1711.04143
Autor:
Wensink, H. H., Ferreiro-Córdova, C.
Publikováno v:
Soft Matter 13, 3885 (2017)
Most theoretical descriptions of lyotropic cholesteric liquid crystals to date focus on homogeneous systems in which the rod concentration, as opposed to the rod orientation, is uniform. In this work, we build upon the Onsager-Straley theory for twis
Externí odkaz:
http://arxiv.org/abs/1705.01045