| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1595266 | Solid State Communications | 2009 | 4 Pages |
Abstract
This paper discusses the difference in permittivity at infrared frequencies between Ba(Mg1/3Ta2/3)O3 (BMT) and Ba(Mg1/3Nb2/3)O3 (BMN) based on a first-principles calculation. The permittivity, far-infrared and Raman spectra are successfully computed. Analysis of these results shows that the smaller amplitude of O in the low frequency mode Eu2 (BMT), which is caused by the larger polarizability of Ta5+, is the origin of the smaller permittivity of BMT.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Yadong Dai, Guanghui Zhao, Liling Guo, Hanxing Liu,