Showing papers on "Ferroelasticity published in 1974"
TL;DR: In this paper, phase equilibria have been established in the binary system Gd2O3MoO3 with ferroelectricity and ferroelasticity below 159°C, by means of differential thermal analysis and X-ray powder diffraction techniques.
29 citations
TL;DR: In this article, the authors considered the problem of condensation of a given set of degenerate soft modes with respect to hard modes of zero-wavenumber and showed that soft modes are not restricted to ferroelectric or ferroelastic ones.
Abstract: The problem “By a condensation of a given set of degenerate soft modes what hard modes are induced to condense and what hard modes are not?” (here either soft or hard modes are not restricted to ferroelectric or ferroelastic ones) is treated theoretically in a general and unified way with an extension of the concept of faintness index for ferroelectricity and ferroelasticity. Also, this general theory is applied to more concrete cases where the prototypic phase belongs to a specified point group and the soft modes are of zero wavenumber and belong to a specified irreducible representation; for all these cases an evaluation is made of the faintness indices of each possible ferroic phase with respect to all hard modes of zero wavenumber.
19 citations
TL;DR: Ferroelasticity in orthorhombic SmAlO 3 is predicted on the basis of the small spontaneous strain of 5.63 × 10 −5 and the pseudosymmetric relations among the atomic coordinates as determined by Marezio et al. as mentioned in this paper.
15 citations