Favorable Concurrence of Static and Dynamic Phenomena at the Morphotropic Phase Boundary of
Journal Article
·
· Physical Review Letters
- Univ. of Hamburg (Germany). Inst. for Theoretical Physics
- Univ. of Erlangen-Nuremberg (Germany)
- Univ. of Science and Technology Beijing (China)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
We demonstrate that the morphotropic phase boundary of the lead-free ferroelectric system (NBT-xBT) can be uniquely distinguished by a reduced polarizationstate along with a non-uniform attening of the local potential function of A- and B-site cationsof the perovskite-type structure. This establishes a robust structure-property connections based onthe atomic-level structural correlations which elucidates the long-standing question: why the MPBof NBT-xBT does not excel as much as Pb-based materials do; and further help to develop strategyin designing ecient lead-free ferroelectric systems.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1427697
- Alternate ID(s):
- OSTI ID: 1409138
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 20 Vol. 119; ISSN 0031-9007; ISSN PRLTAO
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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