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Diluted Random Fields in Mixed Cyanide Crystals

Serge Galam
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Abstract

A percolation argument and a dilute compressible random field Ising model are used to present a simple model for mixed cyanide crystals. The model reproduces quantitatively several features of the phase diagrams altough some crude approximations are made. In particular critical thresholds x_c at which ferroelastic first order transitions disappear, are calculated. Moreover, transitions are found to remain first order down to x_c for all mixtures except for bromine, for which the transition becomes continuous. All the results are in full agreement with experimental data.

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BibTeXRIS

Serge Galam. 1997-02-13. Diluted Random Fields in Mixed Cyanide Crystals. https://doi.org/10.1209/epl%2Fi1997-00199-0

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