Optical anisotropy and charge-transfer transition energies in BiFeO3 from 1.0 to 5.5 eV

被引：37

作者：

Choi, S. G. ^{[1
]}

Yi, H. T. ^{[2
,3
]}

Cheong, S. -W. ^{[2
,3
]}

Hilfiker, J. N. ^{[4
]}

France, R. ^{[1
]}

Norman, A. G. ^{[1
]}

机构：

[1] Natl Renewable Energy Lab, Golden, CO 80401 USA

[2] Rutgers State Univ, Rutgers Ctr Emergent Mat, Piscataway, NJ 08854 USA

[3] Rutgers State Univ, Dept Elect & Comp Engn, Piscataway, NJ 08854 USA

[4] JA Woollam Co Inc, Lincoln, NE 68508 USA

来源：

PHYSICAL REVIEW B | 2011年 / 83卷 / 10期

关键词：

SPECTROSCOPIC ELLIPSOMETRY;

D O I：

10.1103/PhysRevB.83.100101

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We discuss uniaxial optical anisotropy in single-crystal BiFeO3 determined by spectroscopic ellipsometry from 1.0 to 5.5 eV. The dielectric function epsilon = epsilon(1) + i epsilon(2) 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.

引用

页数：4

共 21 条

[1]

[Anonymous], HDB ELLIPSOMETRY

[2] APPROXIMATE SOLUTION OF ELLIPSOMETRIC EQUATIONS FOR OPTICALLY BIAXIAL CRYSTALS [J].