Optical and Magneto-Optical Properties of Gd22Fe78 Thin Films in the Photon Energy Range From 1.5 to 5.5 eV

Optical and magneto-optical properties of amorphous Gd22Fe78 (GdFe) thin films prepared by direct current (DC) sputtering on thermally oxidized substrates were characterized by the combination of spectroscopic ellipsometry and magneto-optical spectroscopy in the photon energy range from 1.5 to 5.5 e...

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Bibliographic Details
Published in:Materials 2016-01, Vol.9 (1), p.23-23
Main Authors: Jesenská, Eva, Hashinaka, Takahiro, Ishibashi, Takayuki, Beran, Lukáš, Dušek, Ján, Antoš, Roman, Kuga, Kiyoshi, Aoshima, Ken-ichi, Machida, Kenji, Kinjo, Hidekazu, Veis, Martin
Format: Article
Language:English
Subjects:
Coatings
Direct current
Magnetic properties
Optical properties
Photons
Spectra
Spectroscopy
Spectrum analysis
Thin films
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Summary:Optical and magneto-optical properties of amorphous Gd22Fe78 (GdFe) thin films prepared by direct current (DC) sputtering on thermally oxidized substrates were characterized by the combination of spectroscopic ellipsometry and magneto-optical spectroscopy in the photon energy range from 1.5 to 5.5 eV. Thin SiNx and Ru coatings were used to prevent the GdFe surface oxidation and contamination. Using advanced theoretical models spectral dependence of the complete permittivity tensor and spectral dependence of the absorption coefficient were deduced from experimental data. No significant changes in the optical properties upon different coatings were observed, indicating reliability of used analysis.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma9010023