Structure of lead zirconium oxide: Evidence from NMR
Korniyenko, S. M.; Bykov, I. P.; Glinchuk, M. D.; Laguta, V. V.; Jastrabik, L.; Korniyenko S. M.; Institute for Problems of Materials Science, NASc of Ukraine, Krjijanovskogo 3, 252180 Kiev, Ukraine; Bykov I. P.; Institute for Problems of Materials Science, NASc of Ukraine, Krjijanovskogo 3, 252180 Kiev, Ukraine; Glinchuk M. D.; Institute for Problems of Materials Science, NASc of Ukraine, Krjijanovskogo 3, 252180 Kiev, Ukraine; Laguta V. V.; Institute for Problems of Materials Science, NASc of Ukraine, Krjijanovskogo 3, 252180 Kiev, Ukraine; Jastrabik L.; Institute of Physics, Academy of Science of the Czech Republic, Na Slovance 2, Praha 8, Czech Republic
Журнал:
The European Physical Journal Applied Physics
Дата:
1999
Аннотация:
Two different lead ion positions with tetragonal and orthorhombic local symmetry were revealed in PbZrO<sub>3</sub> ceramics on the base of <sup>207</sup>Pb NMR spectra measurements at room temperature. The obtained data and their analysis on the base of the spectra shape calculations are in agreement with a symmetry of Pbam nonpolar group space of PbZrO<sub>3</sub>. The comparison of observed spectra in PbTiO<sub>3</sub> and PbZrO<sub>3</sub> with calculated spectra allowing for resonance frequency chemical shift and spin-spin interaction show that the displacements of lead and oxygen ions are not random quantities in the investigated PbZrO<sub>3</sub> ceramic samples.
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