Affiliation:
1. Southern Federal University
Abstract
The dielectric spectrum of CaCu3Ti4O12samples 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 ~ 106Hz). In the low-frequency region (f< 102Hz) a transition from giant permittivity values to its negative values is detected in some samples. Conditions for such transition are discussed.
Publisher
Trans Tech Publications, Ltd.
Reference12 articles.
1. D. C. Sinclair, Timothy B. Adams, Finlay D. Morrison, and Anthony R. West. J. Appl. Phys. Lett., 80 (2002), 2153.
2. T. Lebey, S. Guillemer, V. Bley, M. Boulos, B. Durand. Electronic Components and Technology Conference, 2 (2005), 1248.
3. P. Lunkenheimer, R. Fichtl, S. G. Ebbinghaus and A. Loidl. Phys. Rev. B 70 (2004), 172102.
4. P. Lunkenheimer, S. Krohns, S. Riegg, S. G. Ebbinghaus, A. Reller and A. Loidl. ArXiv: 1003. 4272V1 [cond-mat. str-el] 22 Mar (2010).
5. R. Schmidt and D. C. Sinclair. Chem. Mater., 22 (2010), 6.
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献