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12 papers · 2 filters
Frustration of the isotropic-columnar phase transition of colloidal hard platelets by a transient cubatic phase
Matthieu Marechal, Alessandro Patti, Matthew Dennison +1
Using simulations and theory, we show that the cubatic phase is metastable for three model hard platelets. The locally favored structures of perpendicular particle stacks in the fl…
Rotational averaging-out gravitational sedimentation of colloidal dispersions and phenomena
Djamel El Masri, Teun Vissers, Stephane Badaire +7
We report on the differences between colloidal systems left to evolve in the earth's gravitational field and the same systems for which a slow continuous rotation averaged out the…
Phase diagram of colloidal hard superballs: from cubes via spheres to octahedra
Ran Ni, Anjan Prasad Gantapara, Joost de Graaf +2
The phase diagram of colloidal hard superballs, of which the shape interpolates between cubes and octahedra via spheres, is determined by free-energy calculations in Monte Carlo si…
Depletion-induced biaxial nematic states of boardlike particles
Simone Belli, Marjolein Dijkstra, René van Roij
With the aim of investigating the stability conditions of biaxial nematic liquid crystals, we study the effect of adding a non-adsorbing ideal depletant on the phase behavior of co…
Vacancy-stabilized crystalline order in hard cubes
Frank Smallenburg, Laura Filion, Matthieu Marechal +1
We examine the effect of vacancies on the phase behavior and structure of systems consisting of hard cubes using event-driven molecular dynamics and Monte Carlo simulations. We fin…
Ion association in low-polarity solvents: comparisons between theory, simulation, and experiment
Chantal Valeriani, Philip J. Camp, Jos W. Zwanikken +2
The association of ions in electrolyte solutions at very low concentration and low temperature is studied using computer simulations and quasi-chemical ion-pairing theory. The spec…