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Title: Electroelastic fields in artificially created vortex cores in epitaxial BiFeO3 thin films

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4927750· OSTI ID:1265700
 [1];  [2];  [1];  [3];  [2];  [1]
  1. Pennsylvania State Univ., University Park, PA (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Science (CNMS)
  3. NAS of Ukraine, Kyiv (Ukraine). Inst. of Problems for Material Sciences

Here we employ phase-field modeling to explore the elastic properties of artificially created 1-D domain walls in (001)p-oriented BiFeO3 thin films, composed of a junction of the four polarization variants, all with the same out-of-plane polarization. It was found that these junctions exhibit peculiarly high electroelastic fields induced by the neighboring ferroelastic/ferroelectric domains. The vortex core exhibits a volume expansion, while the anti-vortex core is more compressive. We also discuss possible ways to control the electroelastic field, such as varying material constant and applying transverse electric field.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725; FG02-07ER46417
OSTI ID:
1265700
Alternate ID(s):
OSTI ID: 1229566
Journal Information:
Applied Physics Letters, Vol. 107, Issue 5; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 21 works
Citation information provided by
Web of Science

References (18)

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Cited By (6)

Thermodynamic potential and phase diagram for multiferroic bismuth ferrite (BiFeO 3 ) journal May 2017
Realization of rhombohedral, mixed, and tetragonal like phases of BiFeO 3 and ferroelectric domain engineering using a strain tuning layer on LaAlO 3 (001) substrate journal January 2019
Phase-field simulations of surface charge-induced polarization switching journal March 2019
Characteristics and controllability of vortices in ferromagnetics, ferroelectrics, and multiferroics journal June 2017
Defect driven flexo-chemical coupling in thin ferroelectric films text January 2017
Labyrinthine domains in ferroelectric nanoparticles: a manifestation of gradient-driven morphological transition text January 2018

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