1. Complete Permittivity Tensor in Sputtered CuFe2O4 Thin Films at Photon Energies between 2 and 5 eV
- Author
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N. Venkataramani, Jan Mistrik, Stefan Visnovsky, Martin Veis, Shiva Prasad, P. D. Kulkarni, Roman Antos, and R. Krishnan
- Subjects
Permittivity ,Materials science ,Photon ,Fe3o4 ,Relative permittivity ,Physics::Optics ,Intervalence charge transfer ,Photon energy ,Cu-Ferrite Films ,Magnetic-Properties ,lcsh:Technology ,CuFe2O4 ,Article ,spectroscopic ellipsometry ,magneto-optics ,Optics ,General Materials Science ,Thin film ,Spectroscopy ,lcsh:Microscopy ,lcsh:QC120-168.85 ,permittivity tensor ,Condensed matter physics ,lcsh:QH201-278.5 ,business.industry ,lcsh:T ,Transitions ,Garnets ,Copper Ferrite ,Spectra ,Y3fe5o12 ,Atomic electron transition ,lcsh:TA1-2040 ,Li0.5fe2.5o4 ,lcsh:Descriptive and experimental mechanics ,lcsh:Electrical engineering. Electronics. Nuclear engineering ,spinel ferrite ,business ,lcsh:Engineering (General). Civil engineering (General) ,Moke Spectroscopy ,lcsh:TK1-9971 - Abstract
This work is devoted to the systematic study of the optical and magneto-optical properties of sputter deposited CuFe₂O₄ thin films in the photon energy region between 2 and 5 eV using spectroscopic ellipsometry and magneto-optical Kerr spectroscopy. The spectral dependence of both the diagonal and off-diagonal elements of the permittivity tensor is determined. A complete picture about the electron transitions in CuFe₂O₄ is suggested in the frame of intervalence charge transfer and intersublattice charge transfer transitions. The effect of deposition conditions and post-deposition treatment in CuFe₂O₄ films upon the optical and magneto-optical properties is discussed.
- Published
- 2013
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