The dielectric and insulating properties of epitaxial SrTiO 3 (STO) thin film capacitors were
studied. The films were grown by inverted cylindrical magnetron sputtering in the radio …

The functionality enhancement of ferroelectrics by local polar clusters called polar
nanoregions (PNRs) is one of the current interests in materials science. KTa1− x Nb x O3 …

Phenomenological predictions for sound attenuation and velocity anomalies near critical
points are presented. General symmetry properties of the linear elastic constants and the …

Following the proposal by Müller, Berlinger and Tosatti on a possible coherent quantum
regime in SrTiO 3 below 40 K we have performed elastic measurements to look for possible …

Using synchrotron radiation we have performed a high wavevector resolution study of the X-
ray critical scattering above the cubic-to-tetragonal structural phase transition in SrTiO 3. The …

The anomalous changes of the elastic properties in the vicinity of the Curie temperature,
TC= 304 K, of a 5% Li-doped KTa 1− x Nb x O 3 (KTN) single crystal were investigated by …

KMnF 3 is one of the first systems in which a dynamic “central peak” was observed by
inelastic neutron scattering in the vicinity of a structural phase transition. The origin of this …

Ultrasonic measurements have indicated that there are possible structural changes near
250 K, 160 K and just above T c in the high-T c Y-Ba-Cu-O and Y-Ba-Cu-Nb-O systems …

High-resolution X-ray scattering measurements have shown that the critical fluctuations at
the cubic to tetragonal (196 K) structural phase transition in RbCaF 3 exist on two length …

A Landau free energy expansion in one order parameter has been developed to describe
the first‐order C2/c↔ P21/c phase transition at high pressures in spodumene (LiAlSi2O6) …