# Structure and dynamics of model colloidal clusters with short-range attractions.

@article{Hoy2014StructureAD, title={Structure and dynamics of model colloidal clusters with short-range attractions.}, author={Robert S. Hoy}, journal={Physical review. E, Statistical, nonlinear, and soft matter physics}, year={2014}, volume={91 1}, pages={ 012303 } }

We examine the structure and dynamics of small isolated N-particle clusters interacting via short-ranged Morse potentials. "Ideally prepared ensembles" obtained via exact enumeration studies of sticky hard-sphere packings serve as reference states allowing us to identify key statistical-geometrical properties and to quantitatively characterize how nonequilibrium ensembles prepared by thermal quenches at different rates T[over ̇] differ from their equilibrium counterparts. Studies of equilibrium…

## 19 Citations

### Internal Dynamics of Equilibrium Colloidal Clusters

- Physics
- 2015

Colloidal clusters, aggregates of a fewmicrometer-sized spherical particles, are amodel experimental system for understanding the physics of self-assembly and processes such as nucleation. Colloidal…

### Physical interpretation of the partition function for colloidal clusters

- PhysicsPhysical Review E
- 2018

Colloidal clusters consist of small numbers of colloidal particles bound by weak, short-range attractions. The equilibrium probability of observing a cluster in a particular geometry is…

### Two-Dimensional Clusters of Colloidal Spheres: Ground States, Excited States, and Structural Rearrangements.

- PhysicsPhysical review letters
- 2015

The success of this model, which requires no fitting parameters or measurements of the potential, shows that the free-energy landscape of colloidal systems and the dynamics it governs can be understood geometrically.

### Free energy of singular sticky-sphere clusters.

- PhysicsPhysical review. E
- 2017

This work considers a system of N spherical particles, and directly account for the singularities that arise in the sticky limit where the pairwise interaction is strong and short ranged, and calculates the partition functions of all known rigid clusters up to N≤21 and shows the cluster landscape is dominated by hyperstatic clusters.

### Crystallization and arrest mechanisms of model colloids.

- Materials Science, GeologySoft matter
- 2015

We performed dynamic simulations of spheres with short-range attractive interactions for many values of interaction strength and range. Fast crystallization occurs in a localized region of this…

### From canyons to valleys: Numerically continuing sticky-hard-sphere clusters to the landscapes of smoother potentials.

- PhysicsPhysical review. E
- 2020

This work uses numerical continuation to evolve the local minima (clusters) as the range of the potential increases, using both the Lennard-Jones and Morse families of interaction potentials to compare clusters obtained by continuation with different potentials.

### Equilibrium Shape of Colloidal Crystals.

- Materials ScienceLangmuir : the ACS journal of surfaces and colloids
- 2015

A novel computational approach is reported to determine the equilibrium shape of assemblies of colloidal particles that interact via an experimentally validated pair potential and identifies and characterize fully several "magic" clusters which are significantly more stable than other similarly sized clusters.

### Sticky-Sphere Clusters

- Physics
- 2017

Nano- and microscale particles, such as colloids, commonly interact over ranges much shorter than their diameters, so it is natural to treat them as “sticky,” interacting only when they touch…

### A Detailed Study on the Low-Energy Structures of Charged Colloidal Clusters.

- PhysicsThe journal of physical chemistry. B
- 2016

Although a great diversity of low-energy structures is observed, the global minimum is disputed by three structural motifs depending on the composition of the cluster and, in some cases, on the range of the Morse potential.

### Segregation of "isotope" particles within colloidal molecules.

- ChemistrySoft matter
- 2016

Doping colloidal molecules with colloidal "isotopes," particles that have the same size but different bonding energies from the other particles in the system, shows that even in systems of particles with isotropic interactions, the structures of self-assembled molecules can in principle be controlled to a surprisingly high extent.

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