| Issue |
EPL
Volume 132, Number 4, November 2020
|
|
|---|---|---|
| Article Number | 47004 | |
| Number of page(s) | 7 | |
| Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
| DOI | https://doi.org/10.1209/0295-5075/132/47004 | |
| Published online | 28 December 2020 | |
Partial contributions to the valence band of MO2, RuO2, and Rh2O3: Cooper minimum and extended cluster model calculations
1 Departamento de Física, Universidade Federal do Paraná - Caixa Postal 19044, 81531-990 Curitiba- PR, Brazil
2 Photon Science Division, Paul Scherrer Institut - CH-5232 Villigen PSI, Switzerland
3 Instituto de Física, Universidade de São Paulo - Rua do Matão, 1371, 05508-090, São Paulo- SP, Brazil
Received: 27 July 2020
Accepted: 4 November 2020
We studied the partial contributions to the valence band spectra of MoO2, RuO2 and Rh2O3. The experimental technique of choice was the Cooper minimum method to X-ray photoemission spectroscopy. The spectra were interpreted with an extended cluster model and compared to usual band structure calculations. We conclude that, for the correct description of the valence band, one must include charge transfer, final-state and many-body effects in the description of the electronic structure of these compounds, which can also be extended to other systems.
PACS: 79.60.-i – Photoemission and photoelectron spectra / 71.20.-b – Electron density of states and band structure of crystalline solids / 71.10.-w – Theories and models of many-electron systems
© 2020 EPLA
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