Random-field transition of a binary liquid in a porous medium
- 4 May 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 58 (18) , 1865-1868
- https://doi.org/10.1103/physrevlett.58.1865
Abstract
We have used quasielastic light scattering to study a binary-liquid critical mixture in a porous medium which undergoes a random-field transition upon warming to a history-dependent frozen domain state. Finite-size effects and a crossover to activated dynamics with nonexponential relaxations are observed. The relaxation time is found to increase very rapidly at the random-field transition, in agreement with recent theories of activated dynamics in disordered systems.Keywords
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