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Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.15 [2008] >
IJEMS Vol.15(2) [April 2008] >
| Title: | Effect of calcium variation on dielectric response of the sol-gel derived CaCu₃Ti₄O₁₂ thin films |
| Authors: | Maurya, Deepam
Kumar, Parveen
Singh, Devendra P
Agrawal, D C |
| Issue Date: | Apr-2008 |
| Publisher: | CSIR |
| Abstract: | The giant dielectric constant exhibited by CaCu₃Ti₄O₁₂ (CCTO) over a wide temperature and frequency range has generated considerable interest in this material. In this paper, we report the synthesis of sol-gel derived CCTO thin films with varying calcium content and their dielectric characterization. The room temperature XRD-patterns reveal the formation of a single perovskite phase. The dielectric constant, loss tangent and ac conductivity of these films have been investigated as a function of frequency at room temperature. The results show that with increase in the calcium content upto a certain limit the dielectric constant of these films increases. |
| Page(s): | 107-110 |
| ISSN: | 0971-4588 |
| Source: | IJEMS Vol.15(2) [April 2008]
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