179 citations · 437 across the 7 of their papers we have counts for
7 papers
Structural Origin of the Two-Step Glass Transition
Xinzhuo Liu, Huaguang Wang, Zexin Zhang +1
The glass transition is a long-standing problem in physics. Identifying the structural origin of the transition may lead to the ultimate solution to the problem. Here, for the firs…
Observation and Characterization of the Vestige of the Jamming Transition in a Thermal 3D System
Thomas A. Caswell, Zexin Zhang, Margaret L. Gardel +1
We study the dependence of the pair-correlation function, , and particle mobility on packing fraction in a dense three-dimensional packing of soft colloids made of poly N-iso…
Phonon Spectra, Nearest Neighbors, and Mechanical Stability of Disordered Colloidal Clusters with Attractive Interactions
Peter J. Yunker, Ke Chen, Zexin Zhang +1
We investigate the influence of morphology and size on the vibrational properties of disordered clusters of colloidal particles with attractive interactions. From measurements of d…
Measurement of correlations between low-frequency vibrational modes and particle rearrangements in quasi-two-dimensional colloidal glasses
K. Chen, M. L. Manning, P. J. Yunker +4
We investigate correlations between low-frequency vibrational modes and rearrangements in two-dimensional colloidal glasses composed of thermosensitive microgel particles which rea…
Rotational and Translational Phonon Modes in Glasses Composed of Ellipsoidal Particles
Peter J. Yunker, Ke Chen, Zexin Zhang +3
The effects of particle shape on the vibrational properties of colloidal glasses are studied experimentally. 'Ellipsoidal glasses' are created by stretching polystyrene spheres to…
Helical Packings and Phase Transformations of Soft Spheres in Cylinders
Matthew A. Lohr, Ahmed M. Alsayed, Bryan G. Chen +3
The phase behavior of helical packings of thermoresponsive microspheres inside glass capillaries is studied as a function of volume fraction. Stable packings with long-range orient…
Low-frequency vibrations of soft colloidal glasses
Ke Chen, Wouter G. Ellenbroek, Zexin Zhang +8
We conduct experiments on two-dimensional packings of colloidal thermosensitive hydrogel particles whose packing fraction can be tuned above the jamming transition by varying the t…