Abstract

An approximate method of computing the partition function of a binary solid solution is formulated. If the only constraints are on the mean energy and mean composition, it is shown that no metastable phase is predicted. The partition function is shown to be obtainable from the largest eigenvalue of a quadratic form and the condition for a phase transition is shown to be related to the degeneracy of the largest eigenvalue. The physical interpretation of the eigenfunction is shown to be related to the probability of surface configuration, while the square of the eigenfunction is related to the probability of a configuration on the interior of the crystal. Some simple examples are discussed which are related to the effect of coordination number on phase transitions.

Keywords

EigenfunctionEigenvalues and eigenvectorsBinary numberMathematicsPartition function (quantum field theory)Partition (number theory)MetastabilityDegeneracy (biology)Quadratic equationPhase transitionStatistical physicsk-nearest neighbors algorithmThermodynamicsMathematical analysisPhysicsQuantum mechanicsCombinatoricsGeometry

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Publication Info

Year
1941
Type
article
Volume
9
Issue
10
Pages
747-754
Citations
81
Access
Closed

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Edwin N. Lassettre, John P. Howe (1941). Thermodynamic Properties of Binary Solid Solutions on the Basis of the Nearest Neighbor Approximation. The Journal of Chemical Physics , 9 (10) , 747-754. https://doi.org/10.1063/1.1750835

Identifiers

DOI
10.1063/1.1750835