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Title: Electromechanical control of polarization vortex ordering in an interacting ferroelectric-dielectric composite dimer

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.5046080· OSTI ID:1482110

Using a free-energy based computational model, we have investigated the response of a system comprising two interacting ferroelectric nanospheres, embedded in a dielectric medium, to a static external electric field. The system response is hysteretic and tunable by changing the inter-particle distance and the orientation of the applied field, which strongly modulates the field-driven long-range elastic interactions between the particles that propagate through the dielectric matrix. At small separations, the sensitivity of the system behavior with respect to the electric field direction originates from drastically different configurations of the local vortex-like polarization states in ferroelectric particles. In conclusion, this suggests new routes for the design of composite metamaterials whose dielectric properties can be controlled and tuned by selecting the mutual arrangement of their ferroelectric components.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1482110
Journal Information:
Applied Physics Letters, Vol. 113, Issue 9; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 17 works
Citation information provided by
Web of Science

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Cited By (3)

Landau–Devonshire thermodynamic potentials for displacive perovskite ferroelectrics from first principles journal February 2019
Ferroelectric mesocrystalline BaTiO 3 /BaBi 4 Ti 4 O 15 nanocomposite: formation mechanism, nanostructure, and anomalous ferroelectric response journal January 2019
Size, shape, and orientation dependence of the field-induced behavior in ferroelectric nanoparticles journal April 2019

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