Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1594676 | Solid State Communications | 2009 | 5 Pages |
Abstract
Effects of Mg-substitution on the giant dielectric response in CaCu3Ti4O12 ceramics were investigated and discussed. A significantly enhanced giant dielectric response was obtained in Ca(Cu1−xMgx)3Ti4O12 ceramics, and the dielectric constant step increased with increasing Mg-substitution content. The results of X-ray photoelectron analysis confirmed the obvious increase of Ti3+/Ti4+ ratio, and the enhanced giant dielectric response should originate from the corresponding modification of the mixed-valent structure. The present results have great scientific significance in deepening the understanding on the origin of giant dielectric response and modulating the giant dielectric constant step in CaCu3Ti4O12.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
L. Ni, X.M. Chen,