Electronic structure study of CaCu 3 Ti 4 O 12 by means of X-ray Raman scattering
| Autor: | Takao Watanabe, Nobuo Nakajima, K. Nishiyama, Hojun Im, S. Sasaki, Shunsuke Nozawa, Y. Yokouchi, S. Nakamoto, M. Mikami, Toshiaki Iwazumi, Yasuhisa Tezuka |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Radiation
Materials science 02 engineering and technology Electronic structure Dielectric 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Molecular physics Atomic and Molecular Physics and Optics Spectral line Electronic Optical and Magnetic Materials symbols.namesake X-ray Raman scattering Absorption edge 0103 physical sciences symbols Physical and Theoretical Chemistry Atomic physics 010306 general physics 0210 nano-technology Spectroscopy Excitation Raman scattering Perovskite (structure) |
| Zdroj: | Journal of Electron Spectroscopy and Related Phenomena. 220:114-117 |
| ISSN: | 0368-2048 |
| DOI: | 10.1016/j.elspec.2017.04.005 |
| Popis: | The electronic structure of A-site ordered perovskite CaCu 3 Ti 4 O 12 (CCTO) was studied by X-ray Raman scattering. Core-excitation of Cu 2p 3 d and 2p 4 p were observed under excitation around the Cu K absorption edge, where underlining denotes core holes. The Cu 3 d state was resonantly enhanced under excitation just below the absorption edge. The XRS spectra suggested that the Cu-ion in CCTO is divalent. The anisotropic electronic structure of the Cu 3 d state was observed by XRS. |
| Databáze: | OpenAIRE |
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