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Optical properties of charge carriers in magnetite and Mn ferrites
Author(s) -
Šimša Z.
Publication year - 1979
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.2220960211
Subject(s) - polaron , magnetite , spinel , manganese , charge carrier , ion , condensed matter physics , charge ordering , electron , zener diode , octahedron , materials science , lattice (music) , charge (physics) , drude model , chemistry , physics , voltage , metallurgy , quantum mechanics , organic chemistry , resistor , acoustics
The optical properties of magnetite and iron‐excess manganese ferrites are analyzed in terms of both, the Drude‐Zener model of the free electron gas and the small polaron theory applied to the hopping of the electrons (Fe 2+ ions) in the octahedral positions of the spinel lattice. Several characteristic parameters of the charge carriers are deduced and a comparison with the dc electrical conductivities is made.