ELECTRICAL-PROPERTIES OF COBALT-ZINC FERRITES

Authors
KALE GM ASOKAN T
Citation
Gm. Kale et T. Asokan, ELECTRICAL-PROPERTIES OF COBALT-ZINC FERRITES, Applied physics letters, 62(19), 1993, pp. 2324-2325
Citations number
6
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
62
Issue
19
Year of publication
1993
Pages
2324 - 2325
Database
ISI
SICI code
0003-6951(1993)62:19<2324:EOCF>2.0.ZU;2-E
Abstract
The electrical properties of Co1-xZnxFe2O4 (x=0-1) spinel ferrites wer e investigated by impedance spectroscopy. The grain-boundary resistanc e was found to increase as a function of composition up to x=0.6, and decreases beyond x=0.6. The variation in the bulk resistance and the a ctivation energy as a function of composition is found to exhibit a si milar trend whereas the grain resistance appears to be an independent parameter. The observed results suggest that the bulk properties of so lid solution spinel ferrites are primarily controlled by the grain-bou ndary phase.