Compression for data archiving and backup revisited
Corneliu Constantinescu
SPIE Optical Engineering + Applications 2009
Under heating, α-AIF3 undergoes a structural phase transition from rhombohedral to cubic at temperature T around 730 K. The density-functional method is used to examine the T=0 energy surface in the structural parameter space, and finds the minimum in good agreement with the observed rhombohedral structure. The energy surface and electronic wave functions at the minimum are then used to calculate properties including density of states, Γ-point phonon modes, and the dielectric function. The dipole formed at each fluorine ion in the low-temperature phase is also calculated, and is used in a classical electrostatic picture to examine possible antiferroelectric aspects of this phase transition.
Corneliu Constantinescu
SPIE Optical Engineering + Applications 2009
Thomas H. Baum, Carl E. Larson, et al.
Journal of Organometallic Chemistry
Frank R. Libsch, Takatoshi Tsujimura
Active Matrix Liquid Crystal Displays Technology and Applications 1997
K.A. Chao
Physical Review B