76 citations · 225 across the 10 of their papers we have counts for
6 papers · 1 filter
The rheology of confined colloidal hard discs
Ian Williams, Erdal C. Oğuz, Hartmut Löwen +2
Colloids may be treated as `big atoms' so that they are good models for atomic and molecular systems. Colloidal hard disks are therefore good models for 2d materials and although t…
Flexible confinement leads to multiple relaxation regimes in glassy colloidal liquids
Ian Williams, Erdal C. Oğuz, Paul Bartlettl +2
Understanding relaxation of supercooled fluids is a major challenge and confining such systems can lead to bewildering behaviour. Here we exploit an optically confined colloidal mo…
Transmission of torque at the nanoscale
Ian Williams, Erdal C. Oğuz, Thomas Speck +3
In macroscopic mechanical devices torque is transmitted through gearwheels and clutches. In the construction of devices at the nanoscale, torque and its transmission through soft m…
Experimental Determination of Configurational Entropy in a Two-Dimensional Liquid under Random Pinning
Ian Williams, Francesco Turci, James E. Hallett +4
A quasi two-dimensional colloidal suspension is studied under the influence of immobilisation (pinning) of a random fraction of its particles. We introduce a novel experimental met…
Structural characterisation of polycrystalline colloidal monolayers in the presence of aspherical impurities
Andrew T. Gray, Elizabeth Mould, C. Patrick Royall +1
Impurities in crystalline materials introduce disorder into an otherwise ordered structure due to the formation of lattice defects and grain boundaries. The properties of the resul…
The effect of boundary adaptivity on hexagonal ordering and bistability in circularly confined quasi hard discs
Ian Williams, Erdal C. Oğuz, Robert L. Jack +3
The behaviour of materials under spatial confinement is sensitively dependent on the nature of the confining boundaries. In two dimensions, confinement within a hard circular bound…