Pressure-induced suppression of the diffuse scattering in the model relaxor ferroelectric PbMg(1/3)Nb(2/3)O3.
We report an investigation of the relaxor ferroelectric PbMg(1/3)Nb(2/3)O3 by combining the external parameter high pressure with x-ray diffuse scattering. The observed total suppression of the relaxor-characteristic x-ray diffuse scattering is unusual and points to important pressure-induced changes in the local order. The observed behavior might well be a general feature in relaxor ferroelectrics under high pressure.
Chaabane
B
B
Laboratoire des Matériaux et du Génie Physique, ENS de Physique de Grenoble, B.P. 46, 38402 St. Martin d'Hères, France.
Kreisel
J
J
Dkhil
B
B
Bouvier
P
P
Mezouar
M
M