Residential College | false |
Status | 已發表Published |
The Fe Kedge X-ray absorption study of the local structure of BaFe0.5Nb0.5O3 | |
Shuvaeva, V. A.; Raevski, I. P.; Polozhentsev, O. E.; Zubavichus, Ya. V.; Vlasenko, V. G.; Raevskaya, S. I.; Chen, H. | |
2017-06 | |
Source Publication | MATERIALS CHEMISTRY AND PHYSICS
![]() |
ISSN | 0254-0584 |
Volume | 193Pages:260-266 |
Abstract | The Fe IC edge X-ray absorption fine structure (XAFS) spectra of BaFe0.5Nb0.5O3 were analyzed together with those of Fe2O3 and CaFe0.5Sb0.5O3, which were used as reference compounds. Both X-ray absorption near-edge structure (XANES) and extended X-ray absorption fine structure (EXAFS) have been employed to obtain quantitative structural information on the Fe local environment. A substantial pre-edge peak at the absorption spectra of BaFe0.5Nb0.5O3 shows that the symmetry of the structure is not cubic on the local scale due to Fe displacement off the center of the oxygen octahedron. The values of Fe -O distances were refined by a nonlinear least-square fit to the EXAFS data, and the Fe off-center displacement was estimated to be about 0.12 angstrom. The results show that BaFe0.5Nb0.5O3 possesses quite substantial local dipole moments, which may have an impact on its dielectric properties. (C) 2017 Elsevier B.V. All rights reserved. |
Keyword | Electronic Materials Xafs Local Structure Multiferroics |
DOI | 10.1016/j.matchemphys.2017.02.026 |
URL | View the original |
Indexed By | SCIE |
Language | 英語English |
WOS Research Area | Materials Science |
WOS Subject | Materials Science, Multidisciplinary |
WOS ID | WOS:000399258400032 |
Publisher | ELSEVIER SCIENCE SA |
The Source to Article | WOS |
Scopus ID | 2-s2.0-85016153521 |
Fulltext Access | |
Citation statistics | |
Document Type | Journal article |
Collection | University of Macau |
Recommended Citation GB/T 7714 | Shuvaeva, V. A.,Raevski, I. P.,Polozhentsev, O. E.,et al. The Fe Kedge X-ray absorption study of the local structure of BaFe0.5Nb0.5O3[J]. MATERIALS CHEMISTRY AND PHYSICS, 2017, 193, 260-266. |
APA | Shuvaeva, V. A.., Raevski, I. P.., Polozhentsev, O. E.., Zubavichus, Ya. V.., Vlasenko, V. G.., Raevskaya, S. I.., & Chen, H. (2017). The Fe Kedge X-ray absorption study of the local structure of BaFe0.5Nb0.5O3. MATERIALS CHEMISTRY AND PHYSICS, 193, 260-266. |
MLA | Shuvaeva, V. A.,et al."The Fe Kedge X-ray absorption study of the local structure of BaFe0.5Nb0.5O3".MATERIALS CHEMISTRY AND PHYSICS 193(2017):260-266. |
Files in This Item: | There are no files associated with this item. |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment