|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'506'133
Articles rated: 2609
26 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Ultra-long range correlations of the dynamics of jammed soft matter | | Simona Maccarrone
; Giovanni Brambilla
; Olivier Pravaz
; Agnes Duri
; Matteo Ciccotti
; Jean-Marc Fromental
; Eugene Pashkovski
; Alex Lips
; David A. Sessoms
; Veronique Trappe
; Luca Cipelletti
; | | Date: |
29 Jun 2010 | | Abstract: | We use Photon Correlation Imaging, a recently introduced space-resolved
dynamic light scattering method, to investigate the spatial correlation of the
dynamics of a variety of jammed and glassy soft materials. Strikingly, we find
that in deeply jammed soft materials spatial correlations of the dynamics are
quite generally ultra-long ranged, extending up to the system size, orders of
magnitude larger than any relevant structural length scale, such as the
particle size, or the mesh size for colloidal gel systems. This has to be
contrasted with the case of molecular, colloidal and granular ’’supercooled’’
fluids, where spatial correlations of the dynamics extend over a few particles
at most. Our findings suggest that ultra long range spatial correlations in the
dynamics of a system are directly related to the origin of elasticity. While
solid-like systems with entropic elasticity exhibit very moderate correlations,
systems with enthalpic elasticity exhibit ultra-long range correlations due to
the effective transmission of strains throughout the contact network. | | Source: | arXiv, 1006.5527 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER