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Structure and polarization in the high Tc ferroelectric Bi(Zn,Ti)O3-PbTiO3 solid solutions.
- Source :
-
Physical review letters [Phys Rev Lett] 2007 Mar 09; Vol. 98 (10), pp. 107601. Date of Electronic Publication: 2007 Mar 05. - Publication Year :
- 2007
-
Abstract
- Theoretical ab initio and experimental methods are used to investigate the [Bi(Zn1/2Ti1/2)O3]x[PbTiO3]1-x solid solution. We find that hybridization between Zn 4s and 4p and O 2p orbitals allows the formation of short, covalent Zn-O bonds, enabling favorable coupling between A-site and B-site displacements. This leads to unusually large polarization, strong tetragonality, and an elevated ferroelectric to paraelectric phase transition temperature.
Details
- Language :
- English
- ISSN :
- 0031-9007
- Volume :
- 98
- Issue :
- 10
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 17358566
- Full Text :
- https://doi.org/10.1103/PhysRevLett.98.107601