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Polar Kerr Effect of Magnetite in the Visible and Near Infrared Spectral Regions
Author(s) -
Šimša Z.,
Legall H.,
Široký P.
Publication year - 1980
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221000234
Subject(s) - polar , kerr effect , magnetite , infrared , octahedron , ion , crystal (programming language) , spectral line , materials science , infrared spectroscopy , tensor (intrinsic definition) , condensed matter physics , molecular physics , chemistry , physics , optics , mathematics , organic chemistry , nonlinear system , astronomy , pure mathematics , metallurgy , programming language , quantum mechanics , computer science
Polar Kerr rotation and ellipticity of the synthetic single crystal magnetite are measured at room temperature in the 400 to 2400 nm spectral region. Using these magnetooptical measurements together with the earlier optical data the diagonal and the off‐diagonal tensor elements of the dielectric function are deduced. In the infrared region the dependences are dominated by the presence of the charge carriers while the behaviour in the visible part of the spectra is mainly due to the 3d crystal field transitions of the tetrahedral and octahedral iron ions.