Calculation of the order parameter and the configurational entropy of model albite using the sequential construction method

Abstract

In studying the order parameter and configurational entropy of ‘model’ albite a new method, the sequential construction method, has been developed. As a test, first it was used for Andersen's one-dimensional model of albite. Very good results were obtained, namely for the configurational entropy (a maximum difference of 2% from the exact value was observed). The model was then used for Andersen's two-dimensional model of albite. In comparison with the Monte Carlo results, this method gives better results than the quasi-chemical calculation of Mazo and Andersen.