Aging in a free-energy landscape model for glassy relaxation

被引：26

作者：

Diezemann, G ^{[1
]}

机构：

[1] Univ Mainz, Inst Chem Phys, D-55099 Mainz, Germany

来源：

JOURNAL OF CHEMICAL PHYSICS | 2005年 / 123卷 / 20期

关键词：

D O I：

10.1063/1.2128700

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The aging properties of a simple free-energy landscape model for the primary relaxation in supercooled liquids are investigated. The intermediate scattering function and the rotational correlation functions are calculated for the generic situation of a quench from a high temperature to below the glass transition temperature. It is found that the reequilibration of molecular orientations takes longer than for translational degrees of freedom. The time scale for reequilibration is determined by that of the primary relaxation as an intrinsic property of the model. (c) 2005 American Institute of Physics.

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页数：9

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共 39 条

[11] Energy flow, partial equilibration, and effective temperatures in systems with slow dynamics [J].

Cugliandolo, LF ;

Kurchan, J ;

Peliti, L .

PHYSICAL REVIEW E, 1997, 55 (04) :3898-3914

[12] Rotational correlation functions and apparently enhanced translational diffusion in a free-energy landscape model for the α relaxation in glass-forming liquids [J].

Diezemann, G ;

Sillescu, H ;

Hinze, G ;

Bohmer, R .

PHYSICAL REVIEW E, 1998, 57 (04) :4398-4410

[13] A free-energy landscape model for primary relaxation in glass-forming liquids: Rotations and dynamic heterogeneities [J].

Diezemann, G .

JOURNAL OF CHEMICAL PHYSICS, 1997, 107 (23) :10112-10120

[14] Slow secondary relaxation in a free-energy landscape model for relaxation in glass-forming liquids [J].

Diezemann, G ;

Mohanty, U ;

Oppenheim, I .

PHYSICAL REVIEW E, 1999, 59 (02) :2067-2083

[15] Energy barriers and activated dynamics in a supercooled Lennard-Jones liquid [J].

Doliwa, B ;

Heuer , A .

PHYSICAL REVIEW E, 2003, 67 (03) :16

[16] MASTER-EQUATION APPROACH TO THE GLASS-TRANSITION [J].

DYRE, JC .

PHYSICAL REVIEW LETTERS, 1987, 58 (08) :792-795

[17] Supercooled liquids and glasses [J].

Ediger, MD ;

Angell, CA ;

Nagel, SR .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (31) :13200-13212

[18] Spatially heterogeneous dynamics in supercooled liquids [J].

Ediger, MD .

ANNUAL REVIEW OF PHYSICAL CHEMISTRY, 2000, 51 :99-128

[19] Observation of fluctuation-dissipation-theorem violations in a structural glass [J].

Grigera, TS ;

Israeloff, NE .

PHYSICAL REVIEW LETTERS, 1999, 83 (24) :5038-5041

[20] Fluctuation-dissipation ratio of a spin glass in the aging regime -: art. no. 257202 [J].

Hérisson, D ;

Ocio, M .

PHYSICAL REVIEW LETTERS, 2002, 88 (25) :2572021-2572024

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