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Structure and dynamics of perovskite-type crystals

✍ Scribed by W. Cochran; A. Zia


Publisher
John Wiley and Sons
Year
1968
Tongue
English
Weight
618 KB
Volume
25
Category
Article
ISSN
0370-1972

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Selfconsistent Lattice-Dynamical Theory
✍ B. Pietrass πŸ“‚ Article πŸ“… 1972 πŸ› John Wiley and Sons 🌐 English βš– 457 KB

## Abstract The temperature dependence of the soft mode frequency and of the displacement parameter, associated with the structural phase transition in perovskite‐type crystals, is calculated from anharmonic lattice dynamics in a selfconsistent way. The theory describes the change‐over from the Lan