𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Symmetry of crystals composed of two Bravais sublattices in 6D crystal spaces

✍ Scribed by A. S. Poplavnoĭ


Book ID
111438294
Publisher
SP MAIK Nauka/Interperiodica
Year
2010
Tongue
English
Weight
204 KB
Volume
55
Category
Article
ISSN
1063-7745

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Two-Phonon Processes in Crystals of D Sy
✍ D. M. Bercha; G. D. Puga; A. N. Borets 📂 Article 📅 1973 🏛 John Wiley and Sons 🌐 English ⚖ 432 KB

## Abstract It is established that the absorption in the intermediate infra‐red region in BiOI, BiOBr, and BiOCl has two‐phonon character. Group‐theoretical investigations of the phonon spectrum and two‐phonon infra‐red absorption and Raman scattering for these crystals are Carried out. The selecti