ISSN:
1063-7745
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geosciences
,
Physics
Notes:
Abstract The effect of the ordering of Sc3+ and Ta5+ ions on the behavior of the phonon subsystem in the relaxor ferroelectric PbSc1/2Ta1/2O3 from the numerous AB′ x B″ x−1O3 family has been studied. The nature of an additional contribution to the light-scattering spectra has been analyzed on the experimental data on Raman scattering in PbSc1/2Ta1/2O3, SrAl1/2Ta1/2O3, SrAl1/2Nb1/2O3, and BaMg1/3Ta2/3O3 compounds and inelastic neutron scattering in PbSc1/2Ta1/2O3. It is shown that broadening of the lines in the Raman spectra of PbSc1/2Ta1/2O3 crystals is caused by additional scattering by phonons from various points of the Brillouin zone.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1134/1.171218
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