Cooling-rate dependence of the residual energy of a one-dimensional configurational glass model |
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Authors: | W Kob R Schilling |
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Institution: | (1) Present address: Institut für Physik, Universität Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland;(2) Institut für Theoretische und Angewandte Physik, Universität Stuttgart, Pfaffenwaldring 57, D-7000 Stuttgart 80, Federal Republic of Germany |
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Abstract: | For a one-dimensional configurational glass model we have performed molecular dynamical calculations. The Newtonian equation of motion was solved numerically including a damping term. The residual energye
res( ) as a function of the damping constant , exhibits a power law behavioure
res( )![sim](/content/n4t3042546p00610/xxlarge8764.gif) ![gamma](/content/n4t3042546p00610/xxlarge947.gif) ,![agr](/content/n4t3042546p00610/xxlarge945.gif) 0.061; in an intermediate range of . This behaviour can be explained as the freezing of a certain type of two level systems with an excitation energy and a barrier heightB. The exponent is approximately equal to /B. This relationship is justified analytically.Dedicated to Professor Harry Thomas on the occasion of his 60th birthday |
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