A. Krol, C.J. Sher, et al.
Surface Science
BiVO4 has a pure ferroelastic transition at Tc = 528°K and atmospheric pressure. We elucidated the mechanism of this transition by studying the q≈0 soft optical phonon, with the symmetry of the ferroelastic strain, under large hydrostatic prèssures at room temperature. A free-energy analysis, including the optical-acoustical phonon couplings, shows that the transition is driven by the q≈0 soft optical phonon. © 1978.
A. Krol, C.J. Sher, et al.
Surface Science
R.J. Gambino, N.R. Stemple, et al.
Journal of Physics and Chemistry of Solids
D.D. Awschalom, J.-M. Halbout
Journal of Magnetism and Magnetic Materials
T.N. Morgan
Semiconductor Science and Technology