The high symmetry of the C6,, molecule and the symmetry of the cubic lattice site in solid ChO imply that in addition to the known orientational phase transition at 250 K, there is a sequence of transitions at lower T. These transitions correspond to a successive freezing of orientational degrees of
Orientational phase transitions in solid deuterium bromide
โ Scribed by C.R. Fuselier; J.C. Raich; N.S. Gillis
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 254 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
Phase transition temperatures for solid deuterium bromide are calculated in the effective field approximation. The crystal structure is treated as a twoklimensional lattice of zig-zag chains of DBr molecules. Dipole-dipole and quadrupolequadrupole interactions are included up to second neighbors. in addition, a repulsive crystal field is introduced to fit thz upper transition temperature.
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