Optical investigation of the electronic structures of Y2Ru2O7, CaRuO3, SrRuO3, and Bi2Ru2O7
SCIE
SCOPUS
- Title
- Optical investigation of the electronic structures of Y2Ru2O7, CaRuO3, SrRuO3, and Bi2Ru2O7
- Authors
- Lee, JS; Lee, YS; Noh, TW; Char, K; Park, J; Oh, SJ; Park, JH; Eom, CB; Takeda, T; Kanno, R
- Date Issued
- 2001-12-15
- Publisher
- AMERICAN PHYSICAL SOC
- Abstract
- We investigated the electronic structures of the bandwidth-controlled ruthenates, Y2Ru2O7, CaRuO3, SrRuO3, and Bi2Ru2O7, by optical conductivity analysis in a wide energy region of 5 meV-12 eV. We could assign optical transitions from the systematic changes of the spectra and by comparison with the O 1s x-ray absorption data. We estimated some physical parameters, such as the on-site Coulomb repulsion energy and the crystal-field splitting energy. These parameters show that the 4d orbitals should be more extended than 3d ones. These results are also discussed in terms of the Mott-Hubbard model.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/12060
- DOI
- 10.1104/PHYSREVB.64.245107
- ISSN
- 1098-0121
- Article Type
- Article
- Citation
- PHYSICAL REVIEW B, vol. 64, no. 24, 2001-12-15
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