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Cooperative relaxation in glass forming liquids

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  • Mohanty, Udayan

Abstract

The Adam-Gibbs theory of cooperative relaxation in glass forming liquids is cast in differential form. The differential equations are examples of the differential equations of the renormalization group. It is shown that generalization of the Adam-Gibbs relation arise naturally from these differential equations. The size of the cooperative rearranging region is determined by the configuration restrictions associated with amorphous packings that can be described by the configurational entropy of the melt. The relation between the linear response of a system in thermal equilibrium to an external disturbance and fluctuations of relevant physical quantities in equilibrium are generalized to constrained systems.

Suggested Citation

  • Mohanty, Udayan, 1990. "Cooperative relaxation in glass forming liquids," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 162(3), pages 362-376.
    • Handle: RePEc:eee:phsmap:v:162:y:1990:i:3:p:362-376
    DOI: 10.1016/0378-4371(90)90423-P
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