Citation
H. Moriwake et al., Electric conductivity of non-stoichiometric oxide MgCr2-xO4, J CERAM S J, 107(3), 1999, pp. 258-262
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN
ISSN journal
09145400
→ ACNP
Volume
107
Issue
3
Year of publication
1999
Pages
258 - 262
Database
ISI
SICI code
0914-5400(199903)107:3<258:ECONOM>2.0.ZU;2-A
Abstract
Single-phase cubic spinel structure MgCr2-xO4 compounds with a controlled M
g/Cr ratio were obtained in stoichiometric composition and Mg excessive reg
ion. All of those single phase samples were p type semiconductor and their
electrical resistivity decreased with increasing the Cr vacancy concentrati
on. This result supports our former conclusion that electrical conduction m
echanism of this system is based on the p-type semiconductor conduction due
to electrical hole by Cr4+.