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Title: Long-range stripe nanodomains in epitaxial (110) BiFeO 3 thin films on (100) NdGaO 3 substrate

Here, we report the observation of ferroelectric and ferroelastic nanodomains in (110)-oriented BiFeO 3 (BFO) thin films epitaxially grown on low symmetric (100) NdGaO 3 (NGO) substrate. We observed long range ordering of ferroelectric 109° stripe nanodomains separated by periodic vertical domain walls in as-grown 130 nm thick BFO films. The effect of La 0.67Sr 0.33CoO 3 (LSCO) conducting interlayer on domain configurations in BFO/NGO film was also observed with relatively short range-ordering of stripe domains due to the modified electrostatic boundary conditions in BFO/LSCO/NGO film. Additional studies on B-site doping of Nb ions in BFO films showed change in the domain structures due to doping induced change in lattice anisotropy while maintaining the stripe domain morphology with 109° domain wall. Finally, this long-range array of ferroelectric and ferroelastic domains can be useful for optoelectronic devices and ferroelastic templates for strain coupled artificial magnetoelectric heterostructures.
Authors:
 [1] ;  [2] ; ORCiD logo [3] ;  [4] ;  [5] ;  [2] ; ORCiD logo [4]
  1. Argonne National Lab. (ANL), Lemont, IL (United States); Univ. of Puerto Rico, San Juan, PR (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Univ. of Puerto Rico, San Juan, PR (United States)
  3. Argonne National Lab. (ANL), Lemont, IL (United States)
  4. Argonne National Lab. (ANL), Lemont, IL (United States); KAIST, Daejeon (Korea)
  5. KAIST, Daejeon (Korea)
Publication Date:
Grant/Contract Number:
AC02-06CH11357
Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 7; Journal Issue: 1; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
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 and Engineering Division
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ferroelectrics and multiferroics; nanoscale materials
OSTI Identifier:
1369036