Optical transitions in magnetoelectric Ga0.6Fe1.4O3 from 0.73 to 6.45 eV | Zendy

Sukgeun Choi | Zendy; Christophe Lefèvre | Zendy; F. Roulland | Zendy; C. Mény | Zendy; N. Viart | Zendy; Bobby To | Zendy; Devyn E. Shafer | Zendy; Ranhee Shin | Zendy; Jihye Lee | Zendy; William Jo | Zendy

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Optical transitions in magnetoelectric Ga0.6Fe1.4O3 from 0.73 to 6.45 eV

Author(s) -

Sukgeun Choi,

Christophe Lefèvre,

F. Roulland,

C. Mény,

N. Viart,

Bobby To,

Devyn E. Shafer,

Ranhee Shin,

Jihye Lee,

William Jo

Publication year - 2012

Publication title -

journal of vacuum science and technology b nanotechnology and microelectronics materials processing measurement and phenomena

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.429

H-Index - 119

eISSN - 2166-2754

pISSN - 2166-2746

DOI - 10.1116/1.4721649

Subject(s) - dielectric function , dielectric , ellipsometry , crystallite , materials science , 3d optical data storage , optical spectra , spectral line , transition metal , condensed matter physics , ligand field theory , analytical chemistry (journal) , molecular physics , chemistry , thin film , crystallography , physics , optoelectronics , nanotechnology , biochemistry , chromatography , astronomy , catalysis

The optical properties of polycrystalline Ga0.6Fe1.4O3 bulk are determined by spectroscopic ellipsometry from 0.73 to 6.45 eV. Complex dielectric function ɛ = ɛ1 + iɛ2 spectra are obtained from the multilayer analysis. The ellipsometric data exhibit numerous optical structures, and the transition energies are accurately obtained by analyzing the second-energy derivatives of the data. The origins of the optical structures are explained in terms of Fe3+ ligand field transitions and ligand-to-metal charge transfer transitions.

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