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

doi:10.1103/PhysRevB.83.100101

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

New High Energy Theory Center

Research output: Contribution to journal › Article › peer-review

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 language	English (US)
Article number	100101
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	83
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevB.83.100101
State	Published - Mar 30 2011

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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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.",

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AU - Choi, S. G.

AU - Yi, H. T.

AU - Cheong, S. W.

AU - Hilfiker, J. N.

AU - France, R.

AU - Norman, A. G.

PY - 2011/3/30

Y1 - 2011/3/30

N2 - 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.

AB - 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.

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