Abstract
We present the Is X-ray photoemission spectrum of alpha-Fe2O3 in comparison with its 2p photoemission spectrum. We show that in case of transition metal oxides, because the 1s core hole is not affected by core hole spin-orbit coupling and almost not affected by core-valence multiplet effects, the Fe 1s spectrum and the complementary charge transfer multiplet calculations allow for an accurate determination of the charge transfer parameters. The consistency of the obtained parameters for the 1s photoemission was confirmed with 2p photoemission calculations and compared to 2p experimental photoemission spectra. (C) 2015 Elsevier B.V. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 8-13 |
| Number of pages | 6 |
| Journal | Journal of Electron Spectroscopy and Related Phenomena |
| Volume | 203 |
| DOIs | |
| Publication status | Published - Aug 2015 |
Funding
ESRF is acknowledged for provision of beam time under the experiment number HE-3459. The scientist team from ID16, and especially Roberto Verbeni, is acknowledged for support during the beamtime. ID08 is thanked for the supply of the alpha-Fe<INF>2</INF>O<INF>3</INF> crystal sample. Zoran Ristanovic is acknowledged for help during the beamtime. This work was partially funded by the Italian Ministry of Research through the project PRIN 'Interfacce di ossidi: nuove proprieta emergenti, multifunzionalita e dispositivi per l'elettronica e l'energia (OXIDE).
Keywords
- X-ray photoemission
- HAXPES
- Transition metal oxides
- TRANSITION-METAL COMPOUNDS
- ELECTRONIC-STRUCTURE
- PHOTOELECTRON-SPECTROSCOPY
- CORE-LEVEL
- 3D-TRANSITION-METAL OXIDES
- ABSORPTION-SPECTROSCOPY
- NICKEL DIHALIDES
- SPECTRA
- HARD
- SATELLITES