Aging Effects in a Lennard-Jones Glass

by: Walter Kob, Jean-Louis Barrat

Physical Review Letters, Vol. 78, No. 24. (16 June 1997), 4581.

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Abstract

Using molecular dynamics simulations we study the out of equilibrium dynamic correlations in a model glass-forming liquid. The system is quenched from a high temperature to a temperature below its glass transition temperature and the decay of the two-time intermediate scattering function C ( t w ; t + t w ) is monitored for several values of the waiting time t w after the quench. We find that C ( t w ; t + t w ) shows a strong dependence on the waiting time; i.e.; aging; depends on the temperature before the quench; and; similar to the case of spin glasses; can be scaled onto a master curve.

@article{KobBarratPRL1997, abstract = {Using molecular dynamics simulations we study the out of equilibrium dynamic correlations in a model glass-forming liquid. The system is quenched from a high temperature to a temperature below its glass transition temperature and the decay of the two-time intermediate scattering function C ( t w ; t + t w ) is monitored for several values of the waiting time t w after the quench. We find that C ( t w ; t + t w ) shows a strong dependence on the waiting time; i.e.; aging; depends on the temperature before the quench; and; similar to the case of spin glasses; can be scaled onto a master curve.}, author = {Kob, Walter and Barrat, Jean-Louis }, citeulike-article-id = {2483988}, doi = {10.1103/PhysRevLett.78.4581}, journal = {Physical Review Letters}, month = {June}, number = {24}, pages = {4581+}, posted-at = {2008-03-07 13:10:56}, priority = {2}, publisher = {American Physical Society}, title = {Aging Effects in a Lennard-Jones Glass}, url = {http://dx.doi.org/10.1103/PhysRevLett.78.4581}, volume = {78}, year = {1997} }

RIS record

TY - JOUR ID - KobBarratPRL1997 L3 - citeulike-article-id:2483988 TI - Aging Effects in a Lennard-Jones Glass JF - Physical Review Letters VL - 78 IS - 24 SP - 4581 PB - American Physical Society N2 - Using molecular dynamics simulations we study the out of equilibrium dynamic correlations in a model glass-forming liquid. The system is quenched from a high temperature to a temperature below its glass transition temperature and the decay of the two-time intermediate scattering function C ( t w ; t + t w ) is monitored for several values of the waiting time t w after the quench. We find that C ( t w ; t + t w ) shows a strong dependence on the waiting time; i.e.; aging; depends on the temperature before the quench; and; similar to the case of spin glasses; can be scaled onto a master curve. AU - Kob, Walter AU - Barrat, Jean-Louis PY - 1997/06/16/ UR - http://dx.doi.org/10.1103/PhysRevLett.78.4581 ER -

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