Stripe Domain Structure in Epitaxial (001) BiFeO3 Thin Films on Orthorhombic TbScO3 Substrate

Abstract

We have analyzed the ferroelastic and ferroelectric domain structure of high crystalline quality (001)BiFeO3 films on orthorhombic 110) TbScO3 substrates. Two domains were present in stripes separated by (010) vertical boundaries, with spontaneous polarizations in adjacent domains rotated by 109 deg. The striped morphology was caused by nucleation of only two ferroelastic domains on the low symmetry GdFeO3-type substrate. Domain engineering through substrate symmetry is an important finding for rhombohedral ferroelectric epitaxial thin films. The stripe pattern with vertical walls may be useful for extracting domain wall contributions to magnetism and electrical transport properties of BiFeO3 materials.

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Document Details

Document Type
Technical Report
Publication Date
Jun 26, 2009
Accession Number
ADA607379

Entities

People

  • Avinash Kumar
  • C. B. Eom
  • C. M. Folkman
  • C. T. Nelson
  • H. W. Jang
  • L. Q. Chen
  • S. H. Baek
  • V. Gopalan
  • X. Q. Pan
  • Y. L. Li

Organizations

  • University of Wisconsin–Madison

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Boundaries
  • Crystal Lattices
  • Crystal Structure
  • Crystals
  • Diffraction
  • Domain Walls
  • Electron Microscopy
  • Engineering
  • Ferroelectric Domains
  • Films
  • Geometry
  • High Resolution
  • Materials
  • Materials Science
  • Substrates
  • Thin Films
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Thin Film Deposition Science.