期刊
SOLID STATE COMMUNICATIONS
卷 148, 期 9-10, 页码 399-402出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ssc.2008.09.029
关键词
Ferrite; Citrate precursor; Grain boundaries; Dielectric constant
资金
- DIRDO New Delhi
The dielectric properties of Li(0.4-0.5x)Zn(0.2)Co(x) Fe(2.4-0.5x)O(4) ferrites with x varying from 0.0 to 0.1 in steps of 0.02 synthesized by the citrate precursor method have been investigated as a function of composition and temperature. Room temperature dielectric constant studied at 1 kHz showed a decrease with addition of CO(2+) ions. The variation of dielectric constant with temperature was studied at different frequencies, and an increase was observed as the temperature rises. For certain composition, at particular frequency resonance maxima could be observed in the dielectric constant versus temperature curve. The possible mechanisms responsible for the above behaviour are explained. (C) 2008 Elsevier Ltd. All rights reserved.
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