๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Orientational phase transitions in solid deuterium bromide

โœ 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

No coin nor oath required. For personal study only.

โœฆ 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.


๐Ÿ“œ SIMILAR VOLUMES


Sequence of orientational phase transiti
โœ K.H. Michel ๐Ÿ“‚ Article ๐Ÿ“… 1992 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 217 KB

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

Phase Transitions in Solid Methanol
โœ B.H. Torrie; O.S. Binbrek; M. Strauss; I.P. Swainson ๐Ÿ“‚ Article ๐Ÿ“… 2002 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 222 KB

Neutron powder diffraction patterns were measured for the ordered a-phase and the disordered b-phase of deuterated methanol. The structure of the a-phase at 160 K is in agreement with that found earlier at 15 K. A complete refinement of the structure of the b-phase at 170 K was also carried out. The

Orientational ordering in C70. Evidence
โœ Sheela K. Ramasesha; A.K. Singh; Ram Seshadri; A.K. Sood; C.N.R. Rao ๐Ÿ“‚ Article ๐Ÿ“… 1994 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 382 KB

Variable-temperature X-ray diffraction studies of CT0 suggest the occurrence of two phase transitions around 350 and 280 K where the hi&temperature phase is fee and the low-temperature phase is monoclinic, best described as a distorted hcp structure with a doubled unit cell, two like-phases (possibl

Solid-phase transitions in TlHSO4 crysta
โœ N. Le Calve; B. Pasquier; F. Romain; A. Taffin ๐Ÿ“‚ Article ๐Ÿ“… 1994 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 626 KB
Solid-liquid phase transitions in Lennar
โœ T. Tsang ๐Ÿ“‚ Article ๐Ÿ“… 1995 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 323 KB

A modified cell model is used for the solid-liquid phase transition in the low-pressure region for Lennard-Jones systems. Effects due to randomness of neighboring atomic positions are included in the cell potential. The free energy is then calculated after imposing self-consistent conditions on cell