| Autor: |
Kabirov, Yurii, Gavrilyachenko, Victor, Panchenko, Evgeni, Milov, Evgeni, Klenushkin, Anatoly |
| Zdroj: |
Advanced Materials Research; June 2013, Vol. 705 Issue: 1 p52-55, 4p |
| Abstrakt: |
The dielectric spectrum of CaCu3Ti4O12 samples prepared by traditional "one step" ceramic technology is analyzed. It is established that the characteristic Debye-type dispersion with an activation energy 0, 075 eV manifests in the high-frequency range (f ~ 106 Hz). In the low-frequency region (f< 102 Hz) a transition from giant permittivity values to its negative values is detected in some samples. Conditions for such transition are discussed. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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