Please use this identifier to cite or link to this item:
http://hdl.handle.net/2289/1463
Title: | Slow dynamics, aging, and glassy rheology in soft and living matter |
Authors: | Bandyopadhyay, Ranjini Liang, Dennis Harden, James L. Leheny, Robert L. |
Keywords: | Disordered systems Liquid crystals Mechanical properties X-ray spectroscopies |
Issue Date: | Sep-2006 |
Publisher: | Elsevier Ltd. |
Citation: | Solid State Communications , 2006, Vol.139, p589-598 |
Abstract: | We explore the origins of slow dynamics, aging and glassy rheology in soft and living matter. Non-diffusive slow dynamics and aging in materials characterised by crowding of the constituents can be explained in terms of structural rearrangement or remodelling events that occur within the jammed state. In this context, we introduce the jamming phase diagram proposed by Liu and Nagel to understand the ergodic–nonergodic transition in these systems, and discuss recent theoretical attempts to explain the unusual, faster-than-exponential dynamical structure factors observed in jammed soft materials. We next focus on the anomalous rheology (flow and deformation behavior) ubiquitous in soft matter characterised by metastability and structural disorder, and refer to the Soft Glassy Rheology (SGR) model that quantifies the mechanical response of these systems and predicts aging under suitable conditions. As part of a survey of experimental work related to these issues, we present x-ray photon correlation spectroscopy (XPCS) results of the aging of laponite clay suspensions following rejuvenation. We conclude by exploring the scientific literature for recent theoretical advances in the understanding of these models and for experimental investigations aimed at testing their predictions. |
Description: | Postprint |
URI: | http://hdl.handle.net/2289/1463 |
Alternative Location: | http://dx.doi.org/10.1016/j.ssc.2006.06.023 |
Copyright: | (2006) Elsevier Ltd. This is a postprint of a paper published in Solid State Communications, 2006, Vol.139, p589-598. |
Appears in Collections: | Research Papers (SCM) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
2006 SSC V139 p589.pdf | 23p. | 1.1 MB | Adobe PDF | View/Open |
Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.