Diffusion in quasi-two-dimensional colloid-DNA systems are studied by enhanced video microscopy and image analysis. The colloidal particles are polystyrene spheres and DNA is linear or circular bacteriophage λ-DNA. Dyed linear DNA molecules in pure linear DNA solutions are tracked by...

The renormalization in real space of systems with nonlocal degrees of freedom is discussed and reviewed for the percolation model, for which the degrees of freedom, the clusters, are nonlocal and span all ranges in the system. Previous attempts, including recent ones, are critically examined and...

Grand canonical Monte Carlo, histogram reweighting and finite-size scaling methods are used to determine the phase transitions of bulk (three-dimensional) and confined (quasi-two-dimensional) neutral colloid–polymer systems. The colloids are modeled as hard spheres and the polymer molecules as...

The phase equilibria of aqueous colloid–polymer systems are studied theoretically and experimentally in three and two dimensions. The colloidal interactions are modeled by the depletion model, and the thermodynamic properties are evaluated from the colloid pair correlation functions, obtained...

A calculational scheme is developed for the magnetic critical exponent of an Ising system in the context of a differential real space renormalization transformation. Successive approximations are worked out which require only information of the fixed point solution at a symmetry point. The...

The structure and energy of domain walls of the first-order ferroelectric lead titanate PbTiO3 are determined as a function of temperature using quantitative weak-beam transmission electron microscopy, from room temperature up to the Curie temperature Tc=765K. The thickness of the domain walls...

The interface separating two-dimensional phases close to a critical point is observed in the ferroelectric BaZrxTi1−xO3 by transmission electron microscopy. The temperature dependence of the interfacial thickness is determined and compared with theoretical predictions.

Theoretical and computer simulation results for the equilibrium structure of the interface between two-dimensional fluid phases near the critical point are described.