Electrical conductivity of gadolinium substituted Mn-Zn ferrite

Authors
Ravinder, D Suresh, K
Citation
D. Ravinder et K. Suresh, Electrical conductivity of gadolinium substituted Mn-Zn ferrite, MATER LETT, 44(3-4), 2000, pp. 253-255
Citations number
13
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
MATERIALS LETTERS
ISSN journal
0167577X → ACNP
Volume
44
Issue
3-4
Year of publication
2000
Pages
253 - 255
Database
ISI
SICI code
0167-577X(200006)44:3-4<253:ECOGSM>2.0.ZU;2-G
Abstract
Electrical conductivity of polycrystalline gadolinium substituted manganese -zinc (Mn-Zn) ferrite was investigated from room temperature to well beyond the Curie temperature. Plots of log(sigma T) vs. 1000/T show a transition near the Curie temperature. The activation energy in the ferrimagnetic regi on is in general less than that in the paramagnetic region. An attempt is m ade to explain the conduction mechanism in these ferrites. (C) 2000 Elsevie r Science B.V. All rights reserved.