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Electrical Conductivity Mechanism in Zinc and Copper Substituted Magnetite
Author(s) -
Srinivasan G.,
Srivastava C. M.
Publication year - 1981
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.2221030226
Subject(s) - copper , seebeck coefficient , zinc , electrical resistivity and conductivity , ferrous , magnetite , materials science , conductivity , crystallite , phase (matter) , quantum tunnelling , inorganic chemistry , analytical chemistry (journal) , metallurgy , chemistry , thermal conductivity , composite material , physics , optoelectronics , organic chemistry , chromatography , quantum mechanics
The electrical transport properties in polycrystalline ferrous zinc ferrites, Zn x Fe 3− x O 4 ( x = 0, 0.2, 0.4, 0.6) and ferrous zinc–copper ferrites, Zn x Cu 0.1 Fe 2.9‐ x O 4 ( x = 0, 0.1, 0.2, 0.3, 0.4), are studied by measuring the conductivity and the Seebeck coefficient. The conductivity is shown to arise from the phonon‐induced tunneling of electrons from one B site to another in the cubic phase of these ferrites.