William G. Van der Sluys, Alfred P. Sattelberger, et al.
Polyhedron
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.
William G. Van der Sluys, Alfred P. Sattelberger, et al.
Polyhedron
Elizabeth A. Sholler, Frederick M. Meyer, et al.
SPIE AeroSense 1997
Michael Ray, Yves C. Martin
Proceedings of SPIE - The International Society for Optical Engineering
M.A. Lutz, R.M. Feenstra, et al.
Surface Science