Optical anisotropy and charge-transfer transition energies in BiFeO 3 from 1.0 to 5.5 eV

S. G. Choi, H. T. Yi, S. W. Cheong, J. N. Hilfiker, R. France, A. G. Norman

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31 Scopus citations

Abstract

We discuss uniaxial optical anisotropy in single-crystal BiFeO3 determined by spectroscopic ellipsometry from 1.0 to 5.5 eV. The dielectric function = 1 + i2 and refractive index N = n + ik spectra of BiFeO3 are extracted for the tensor components along its ordinary and extraordinary principal axes. Using the standard line-shape analysis, we also obtain the energies of the major optical structures associated with the charge-transfer transitions in BiFeO3.

Original languageEnglish (US)
Article number100101
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume83
Issue number10
DOIs
StatePublished - Mar 30 2011

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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