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Electrical Conduction in Pure and Li‐Substituted Co 3 O 4
Author(s) -
KOUMOTO KUNIHITO,
YANAGIDA HIROAKI
Publication year - 1981
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1981.tb15878.x
Subject(s) - seebeck coefficient , thermal conduction , electrical resistivity and conductivity , impurity , spinel , materials science , electrical conduction , condensed matter physics , thermoelectric effect , analytical chemistry (journal) , chemistry , thermodynamics , thermal conductivity , electrical engineering , physics , metallurgy , organic chemistry , engineering , composite material , chromatography
Electrical conductivity and thermoelectric power measurements on pure and Li‐substituted Co 3 O 4 were performed at 200° to 900°C. Impurity‐induced p‐type semiconduction was observed at low temperatures and intrinsic behavior at high temperatures. A hopping scheme for electron hole conduction was confirmed, and site exchange of cations in the spinel structure was proposed to explain the electrical conduction at high temperatures.