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Anomalous Acoustic Dispersion in Centrosymmetric Crystals with Soft Optic Phonons

✍ Scribed by Axe, J. D.; Harada, J.; Shirane, G.

Book ID
125447921
Publisher
The American Physical Society
Year
1970
Tongue
English
Weight
930 KB
Volume
1
Category
Article
ISSN
1098-0121

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πŸ“œ SIMILAR VOLUMES

Phonon relaxation due to anharmonism and
Phonon relaxation due to anharmonism and central peak in structural phase transitions. II. Soft optic modes in uniaxial ferroelectrics and soft acoustic modes in cubic crystals
✍ V. N. Kashcheev πŸ“‚ Article πŸ“… 1983 πŸ› John Wiley and Sons 🌐 English βš– 473 KB

## Abstract In the modeβ€”mode coupling approximation the critical exponents (CE) are calculated for the dampings and frequency shifts of soft optic modes and acoustic phonons (in uniaxial ferroelectrics) and for the dampings of soft acoustic phonons (in cubic crystals) in the structural transition p