Successive exponential and full aging regimes evidenced by tracer diffusion in a colloidal glass

被引：30

作者：

Kaloun, S

Skouri, R

Skouri, M

Munch, JP

Schosseler, F

机构：

[1] Inst Charles Sadron, UPR 22, F-67083 Strasbourg, France

[2] IPCMS, UMR 7504, F-67034 Strasbourg, France

[3] Univ Cadi Ayyad, LEI, Fac Sci Semlalia, Marrakech, Morocco

[4] Fac Sci & Tech, Errachidia, Morocco

来源：

PHYSICAL REVIEW E | 2005年 / 72卷 / 01期

关键词：

D O I：

10.1103/PhysRevE.72.011403

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We study the aging of a colloidal laponite glass by measuring the dynamic structure factor of dilute embedded tracer particles on micrometric length scales. We show that an initial aging regime, where the decay time grows exponentially with aging time t(w), tau similar to exp(gamma t(w)), is followed by a full aging regime, tau similar to t(w)(v) with v approximate to 1. The dynamics of the tracers is diffusive in the exponential regime and hyperdiffusive in the full aging regime, up to micrometric length scales.

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页数：5

相关论文

共 18 条

[1] Probing a nonequilibrium Einstein relation in an aging colloidal glass [J].

Abou, B ;

Gallet, F .

PHYSICAL REVIEW LETTERS, 2004, 93 (16) :160603-1

[2] Aging dynamics in a colloidal glass [J].

Abou, B. ;

Bonn, D. ;

Meunier, J. .

Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 2001, 64 (2 I) :215101-215106

[3] Violation of the fluctuation-dissipation relation during the formation of a colloidal glass [J].

Bellon, L ;

Ciliberto, S ;

Laroche, C .

EUROPHYSICS LETTERS, 2001, 53 (04) :511-517

[4] Aging processes and scale dependence in soft glassy colloidal suspensions [J].

Bellour, M ;

Knaebel, A ;

Harden, JL ;

Lequeux, F ;

Munch, JP .

PHYSICAL REVIEW E, 2003, 67 (03) :8

[5] Aging of a colloidal "Wigner" glass [J].

Bonn, D ;

Tanaka, H ;

Wegdam, G ;

Kellay, H ;

Meunier, J .

EUROPHYSICS LETTERS, 1999, 45 (01) :52-57

[6] Laponite: Aging and shear rejuvenation of a colloidal glass [J].

Bonn, D ;

Tanase, S ;

Abou, B ;

Tanaka, H ;

Meunier, J .

PHYSICAL REVIEW LETTERS, 2002, 89 (01) :157011-157014

[7]

BOUCHAUD J.-P., 1998, SPIN GLASSES RANDOM

[8] Anomalous dynamical light scattering in soft glassy gels [J].

Bouchaud, JP ;

Pitard, E .

EUROPEAN PHYSICAL JOURNAL E, 2002, 9 (03) :287-291

[9] Universal non-diffusive slow dynamics in aging soft matter [J].

Cipelletti, L ;

Ramos, L ;

Manley, S ;

Pitard, E ;

Weitz, DA ;

Pashkovski, EE ;

Johansson, M .

FARADAY DISCUSSIONS, 2003, 123 :237-251

[10] Ultralow-angle dynamic light scattering with a charge coupled device camera based multispeckle, multitau correlator [J].

Cipelletti, L ;

Weitz, DA .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1999, 70 (08) :3214-3221