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Nonergodic states of charged colloidal suspensions: repulsive and attractive glasses and gels.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Tanaka, Hajime Meunier, Jacques Bonn, Daniel |
| Copyright Year | 2004 |
| Abstract | Two types of isotropic disordered nonergodic states exist in colloidal suspensions: glasses and gels. The difference between the two is that the nonergodicity, or elasticity, of gel stems from the existence of a percolated network, while that of glass stems from caging effects. Despite this clear difference in the origin of nonergodicity, it is not straightforward to distinguish the two states in a clear manner. Taking a Laponite suspension as an explicit example, we propose a general phase diagram for charged colloidal systems. It follows that a transition from the glass to the gel state can be induced by changing the interparticle interactions from predominantly repulsive to attractive. This originates from the competition between electrostatic Coulomb repulsion and van der Waals attraction. If the repulsion dominates, the system forms a Wigner glass, while in a predominantly attractive situation it forms a gel. In the intermediate region, where both repulsive and attractive interactions play roles, it may form an attractive glass. |
| Starting Page | 031404 |
| Ending Page | 031404 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| DOI | 10.1103/PhysRevE.69.031404 |
| PubMed reference number | 15089291 |
| Journal | Medline |
| Volume Number | 69 |
| Issue Number | 3 |
| Part | 1 |
| Alternate Webpage(s) | https://pure.uva.nl/ws/files/3673431/39544_171022y.pdf |
| Alternate Webpage(s) | https://doi.org/10.1103/PhysRevE.69.031404 |
| Journal | Physical review. E, Statistical, nonlinear, and soft matter physics |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
