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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.43 [2005] >
IJPAP Vol.43(09) [September 2005] >
| Title: | Frequency dependent dielectric behaviour of cadmium and chromium co-substituted nickel ferrite |
| Authors: | Trivedi, U N
Chhantbar, M C
Modi, K B
Joshi, H H |
| Keywords: | Ferrites
Dielectric properties
Polarization
Dipole-dipole interactions |
| Issue Date: | Sep-2005 |
| Publisher: | CSIR |
| IPC Code: | G01R27/26 |
| Abstract: | The frequency
dependent dielectric properties of Ni1-xCdxCrxFe2-xO4 (x = 0.0, 0.3, 0.5, 0.7 and 1.0) spinel ferrite system are studied
by measuring dielectric constant (ε'),
dielectric loss (D) and conductivity
(σa.c) at 300 K in the frequency range 100 Hz-2 MHz. The highest
value of σa.c and ε' is
observed for x = 0.3 composition. The
values ε' and σa.c decrease with
increase in frequency for all the compositions, exhibiting normal ferrimagnetic
behaviour and are attributed to Maxwell-Wagner type interfacial polarization.
The observed broadening of relaxation peak with content in dielectric loss
versus frequency curve is due to the strengthening of dipole-dipole interactions. |
| Page(s): | 688-690 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.43(09) [September 2005]
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