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Electrical Conductivity and Thermoelectric Power of LithiumZinc Ferrites
Author(s) -
Ravinder D.,
Seshagiri Rao T.
Publication year - 1990
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170250918
Subject(s) - seebeck coefficient , ferrimagnetism , crystallite , electrical resistivity and conductivity , curie temperature , charge carrier , materials science , thermoelectric effect , condensed matter physics , lithium (medication) , zinc , paramagnetism , conductivity , analytical chemistry (journal) , chemistry , thermodynamics , magnetization , ferromagnetism , magnetic field , metallurgy , electrical engineering , physics , optoelectronics , medicine , quantum mechanics , chromatography , endocrinology , engineering
Electrical conductivity (σ) and thermoelectric ( Q ) of polycrystalline lithium‐zinc ferrites of different compositions was investigated as a function of composition and temperature. Plots of log (σ T ) versus 10 3 / T are almost linear and show a transition near the Curie temperature. The activation energy. in the ferrimagnetic region is in general less than that in the paramagnetic region. The carrier concentration and mobility of charge carriers has been discussed as a function of composition and temperature.