Sn. Gvasaliya et al., Effect of a disorder degree on the vibrational spectrum of relaxor ferroelectric PbSc1/2Ta1/2O3, PHYSICA B, 276, 2000, pp. 485-486
Effects of a disorder degree on the vibrational spectrum of a PbSc1/2Ta1/2O
3 - (PST) relaxer ferroelectric were studied by inelastic neutron scatterin
g in the temperature range 77-320 K. PST samples with different disorder de
grees were observed to exhibit different lattice dynamics. It has been foun
d that at low energies the density of vibrational states of disordered PST
varies with temperature in a wider energy range than that of the ordered PS
T. (C) 2000 Elsevier Science B.V. All rights reserved.