Study of the electrical properties of calcium-substituted Li-Zn ferrite
Sattar, A.A.; El-Sayed, H.M.; AGAMI, W.R. (WALEED RAGAB ABDUR RASHEED AGAMI);
Abstract
Temperature and composition dependence of the dc resistivity (ρ dc) and thermoelectric power (α) of Li 0.3-0.5xZn 0.4Ca xFe 2.3-0.5xO 4 ferrites (x = 0.0, 0.01, 0.02, 0.03 and 0.05), prepared by the standard ceramic method, have been studied. The behavior of both ρ dc and α with temperature support the electron hopping conduction mechanism in the ferrimagnetic phase while the band mechanism dominates in the paramagnetic phase. Moreover, it was found that both ρ dc and a decrease with increasing x up to x = 0.02 and then increase. The frequency and composition dependence of ε′, ε″ and ρ ac are found to support Koops's model. © 2008 WILEY-VCH Verlag GmbH & Co. KGaA.
Other data
| Title | Study of the electrical properties of calcium-substituted Li-Zn ferrite | Authors | Sattar, A.A. ; El-Sayed, H.M. ; AGAMI, W.R. (WALEED RAGAB ABDUR RASHEED AGAMI) | Keywords | NI-CD FERRITES;THERMOELECTRIC-POWER;DIELECTRIC BEHAVIOR;ZINC FERRITE;DC RESISTIVITY;MIXED FERRITES;CONDUCTIVITY;TEMPERATURE;SYSTEM;ORDER | Issue Date | 1-Nov-2008 | Publisher | WILEY-V C H VERLAG GMBH | Journal | Physica Status Solidi (A) Applications and Materials Science | ISSN | 18626300 | DOI | 10.1002/pssa.200824042 | Scopus ID | 2-s2.0-55849121943 | Web of science ID | WOS:000261088200047 |
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