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Selfconsistent theory of phase separation in HTSC

✍ Scribed by A.A. Gorbatsevich; Yu.V. Kopaev; I.V. Tokatly


Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
168 KB
Volume
185-189
Category
Article
ISSN
0921-4534

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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