Inspired by the observations of a remarkably stable biaxial nematic phase [van den Pol et al., Phys. Rev. Lett. 103, 258301 (2009)], we investigate the effect of size polydispersity on the phase behavior of a suspension of boardlike particles. By means of Onsager theory within the restricted orientation (Zwanzig) model we show that polydispersity induces a novel topology in the phase diagram, w...

We have established the solid–fluid coexistence region for a system of polydisperse hard spheres with near-Gaussian diameter distributions, as a function of polydispersity. Significantly, we observe a ‘terminal’ polydispersity above which there can be no fluid–solid coexistence. At the terminus the polydispersity is 5.7% for the solid and 11.8% for the fluid while the volume fractions are 0.588...

The influence of polydispersity on the magnetization is analysed in a nonequilibrium situation where a cylindrical ferrofluid column is forced to rotate with constant frequency, like a rigid body in a homogeneous magnetic field that is applied perpendicular to the cylinder axis. Then, the magnetization and the internal magnetic field are no longer parallel to each other and their directions dif...

We compare results for the number-weighted mean radius and polydispersity obtained either by directly fitting number distributions to dynamic light scattering (DLS) data or by converting results obtained by fitting intensityweighted distributions. We find that results from fits using number distributions are angle independent. We find that converting intensity-weighted distributions is not alwa...

We compare results for the number-weighted mean radius and polydispersity obtained either by directly fitting number distributions to dynamic light-scattering data or by converting results obtained by fitting intensity-weighted distributions. We find that results from fits using number distributions are angle independent and that converting intensity-weighted distributions is not always reliabl...

The connectedness percolation threshold (η(c)) and critical coordination number (Z(c)) of systems of penetrable spherocylinders characterized by a length polydispersity are studied by way of Monte Carlo simulations for several aspect ratio distributions. We find that (i) η(c) is a nearly universal function of the weight-averaged aspect ratio, with an approximate inverse dependence that extends ...

decreased to 2276±288 nm at the end of 120 min having a polydispersity over 0.7 for both of the incubations. Among the CLDC10 and CLDC11 prepared at the highest ratios (1:0.186 w/w) the complexation process was the fastest and the size observed between 2900 nm to 3044 nm remained nearly unchanged with CLDC10, whereas a progressive increase and then decrease was observed with CLDC11. The measure...