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

Abstract

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.

Authors:
 [1]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [3]
  1. Czech Academy of Sciences (Czech Republic); Univ. of Connecticut, Storrs, CT (United States)
  2. Univ. of Connecticut, Storrs, CT (United States)
  3. Argonne National Lab. (ANL), Lemont, IL (United States); Northwestern Univ., Evanston, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
OSTI Identifier:
1482110
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 113; Journal Issue: 9; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Mangeri, John, Alpay, S. Pamir, Nakhmanson, Serge, and Heinonen, Olle G. Electromechanical control of polarization vortex ordering in an interacting ferroelectric-dielectric composite dimer. United States: N. p., 2018. Web. doi:10.1063/1.5046080.
Mangeri, John, Alpay, S. Pamir, Nakhmanson, Serge, & Heinonen, Olle G. Electromechanical control of polarization vortex ordering in an interacting ferroelectric-dielectric composite dimer. United States. doi:10.1063/1.5046080.
Mangeri, John, Alpay, S. Pamir, Nakhmanson, Serge, and Heinonen, Olle G. Mon . "Electromechanical control of polarization vortex ordering in an interacting ferroelectric-dielectric composite dimer". United States. doi:10.1063/1.5046080.
@article{osti_1482110,
title = {Electromechanical control of polarization vortex ordering in an interacting ferroelectric-dielectric composite dimer},
author = {Mangeri, John and Alpay, S. Pamir and Nakhmanson, Serge and Heinonen, Olle G.},
abstractNote = {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.},
doi = {10.1063/1.5046080},
journal = {Applied Physics Letters},
number = 9,
volume = 113,
place = {United States},
year = {2018},
month = {8}
}

Journal Article:
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This content will become publicly available on August 27, 2019
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