Abstract
We establish the spectral line shape of orbital excitations created by resonant inelastic x-ray scattering for the model Mott insulator CoO. Improved experimental energy resolution reveals that the line shapes are strikingly different from expectations in a first-principles-based atomic multiplet model. Extended theoretical simulations are performed to identify the underlying physical origins, which include a pronounced thermal tail reminiscent of anti-Stokes scattering on the energy gain side of excitations, and an essential contribution from interatomic many-body dynamics on the energy loss side of excitations.
Original language | English (US) |
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Article number | 035105 |
Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 88 |
Issue number | 3 |
DOIs | |
State | Published - Jul 8 2013 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics