Perovskites: 'Effective' Temperature and Coordination Dependence of 38 Ionic Radii
| Autor: | V. L. Miller, Steven C. Tidrow |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Ionic radius
Materials science Analytical chemistry Effective temperature Condensed Matter Physics Thermal expansion Electronic Optical and Magnetic Materials Ion Control and Systems Engineering Computational chemistry Lattice (order) Materials Chemistry Ceramics and Composites Electrical and Electronic Engineering Solid solution Perovskite (structure) |
| Zdroj: | Integrated Ferroelectrics. 166:30-47 |
| ISSN: | 1607-8489 1058-4587 |
| Popis: | The lattice parameters of thirty-one temperature dependent and six single temperature Perovskites have been utilized within the “simple” “ideal” Perovskite planar and volume constrained ionic radii structural model to evaluate the “effective” ionic radii values and ionic radii thermal expansion coefficients of: (i) 12-fold coordinated A-site ions, where A is Ag1+, Cs1+, Na1+, K1+, Rb1+, Ba2+, Ca2+, Eu2+, Pb2+, Sr2+, Ce3+, and La3+; (ii) 6-fold coordinated B-site ions, where B is Ca2+, Mg2+, Mn2+, Pb2+, Al3+, Ce4+, Cr4+, Hf4+, Mo4+, Os4+, Pb4+, Pr4+, Ru4+, Sn4+,Tb4+, Tc4+, Ti4+, U4+, Zr4+, Nb5+, Ta5+, and U5+; and: (iii) 6-fold coordinated C-site anions, where C is, F1−, H1−, I1− and O2−. The determined “effective” ionic radii values with thermal expansion coefficients are shown to provide fidelity of temperature dependent lattice parameters of at least thirty-one temperature dependent, six single temperature, and, through use of Vegard's Law, twenty-three “simply” mixed solid solution materials. |
| Databáze: | OpenAIRE |
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