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Favorable Concurrence of Static and Dynamic Phenomena at the Morphotropic Phase Boundary of x BiNi0.5 Zr0.5 O3 -(1-x) PbTiO3

Journal Article · · Physical Review Letters
 [1];  [2];  [3];  [4];  [1]
  1. Univ. of Hamburg (Germany). Inst. for Theoretical Physics
  2. Univ. of Erlangen-Nuremberg (Germany)
  3. Univ. of Science and Technology Beijing (China)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
We demonstrate that the morphotropic phase boundary of the lead-free ferroelectric system x BiNi0.5 Zr0.5 O3 -(1-x) PbTiO3 (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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Cited By (4)

Optimization of multiferroic properties in BiFeO3–BaTiO3-based ceramics by tuning oxygen octahedral distortion journal December 2019
Multistep coupling of preexisting local ferroic distortions in PbTiO 3 above the Curie temperature journal October 2018
Large electromechanical response in ferroelectrics: Beyond the morphotropic phase boundary paradigm journal September 2019
Increasing intervention of nonferroelectric distortion and weakening of ferroelectricity at the morphotropic phase boundary in N a 0.5 B i 0.5 Ti O 3 − BaTi O 3 journal October 2019

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