| 1 |
| Authors | V. Chikkadi, G.H. Wegdam, D. Bonn, B. Nienhuis, P. Schall | | Title | 355858 |
| Journal | Physical Review Letters |
| Volume | 107 |
| Year | 2011 |
| Issue | 19 |
| Pages | 4 |
| ISSN | 00319007 |
| Faculty | Faculty of Science |
| Institute/dept. | FNWI: Institute for Theoretical Physics (ITF) |
| Abstract | Glasses behave as solids on experimental time scales due to their slow relaxation. Growing
dynamic length scales due to cooperative motion of particles are believed to be central to this slow
response. For quiescent glasses, however, the size of the cooperatively rearranging regions has never been observed to exceed a few particle diameters, and the observation of long-range correlations has remained elusive. Here, we provide direct experimental evidence of long-range correlations during the deformation of a dense colloidal glass. By imposing an external stress, we force structural rearrangements, and we identify long-range correlations in the fluctuations of microscopic strain and elucidate their scaling and spatial symmetry. The applied shear induces a transition from homogeneous to inhomogeneous flow at a critical shear rate, and we investigate the role of strain correlations in this transition. |
| Document type | Article |
| Document finder | 
|
Use this url to link to this page: http://dare.uva.nl/en/record/413290
Contact us about this recordNotify a colleague
Add to bookbag
|
