The nonempirical calculation of the cation ordering and lattice dynamics in the solid solutions of PbSc1/2Nb1/2O3 and PbSc1/2Ta1/2O3
β Scribed by V.I. Zinenko; S.N. Sofronova
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 139 KB
- Volume
- 1
- Category
- Article
- ISSN
- 1862-6351
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π SIMILAR VOLUMES
In the present work the e4ects of cation ordering on dielectric properties were isolated by investigating three polymorphs of Ca(Ca 1/ 3 Nb 2/ 3 )O 3 that feature di4erent arrangements of the Ca 2Ψ and Nb 5Ψ cations on the B-sites of the perovskite structure. Dielectric measurements at frequencies a
This paper discusses the difference in permittivity at infrared frequencies between Ba(Mg 1/3 Ta 2/3 )O 3 (BMT) and Ba(Mg 1/3 Nb 2/3 )O 3 (BMN) based on a first-principles calculation. The permittivity, far-infrared and Raman spectra are successfully computed. Analysis of these results shows that th