Statistical Perturbation Theory of Order–Disorder Ferroelectrics: Zeroth Approximation
✍ Scribed by R. E. Nettleton
- Publisher
- John Wiley and Sons
- Year
- 1967
- Tongue
- English
- Weight
- 533 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0370-1972
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📜 SIMILAR VOLUMES
A simplilled procedure is presented, whereby the so-called quasichemical approximation in orderdisorder theory is derived; the complexities attendant to other derivations are avoided. Following the procedure of Hijmans and de Boer, the lattice consisting of A and B units is decomposed into represent
## Abstract An approximate fourth‐order expression for the electron correlation energy in the Møller–Plesset perturbation scheme is proposed. It takes into account all the contributions to the fourthorder energy neglecting only those of the triple‐substituted determinants. It is size consistent and