Journal article
Fluctuation effects in first-order phase transitions: Theory and model for martensitic transformations
Nano-Microstructures in Materials, Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark1
Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark2
Risø National Laboratory for Sustainable Energy, Technical University of Denmark3
Department of Chemistry, Technical University of Denmark4
We discuss central questions in weak, first-order structural transitions by means of a magnetic analog model. A theory including fluctuation effects is developed for the model, showing a dynamical response with softening, fading modes and a growing central peak. The model is also analyzed by a two-dimensional Monte Carlo simulation, showing clear precursor phenomena near the first-order transition and spontaneous nucleation.
The kinetics of the domain growth is studied and found to be exceedingly slow. The results are applicable for martensitic transformations and structural surface-reconstructive transitions.
Language: | English |
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Year: | 1990 |
Pages: | 688-703 |
ISSN: | 10953795 , 01631829 , 1550235x and 24699950 |
Types: | Journal article |
DOI: | 10.1103/PhysRevB.41.688 |