Temperature behavior of tracer diffusion in amorphous materials: A random-walk approach
- 2 July 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 65 (1) , 60-63
- https://doi.org/10.1103/physrevlett.65.60
Abstract
In this Letter we study the behavior, versus temperature, of tracer diffusion in random materials, for example, amorphous solids. By using a combined approach, using the analytical continuous-time random-walk theory and Monte Carlo simulations, we are able to propose a possible explanation for the nearly Arrhenian behavior observed in most amorphous solids by a compensation between site and saddle disorder.Keywords
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