Details

Autor(en) / Beteiligte

• Ruotsalainen, Kari
• Nicolaou, Alessandro
• Sahle, Christoph J
• Efimenko, Anna
• Ablett, James M
• Rueff, Jean-Pascal
• Prabhakaran, Dharmalingam
• Gatti, Matteo

Titel

Dynamical screening in SrVO3: Inelastic x-ray scattering experiments and ab initio calculations

Ist Teil von

• Physical review. B, 2021-06, Vol.103 (23), p.1

Ort / Verlag

College Park: American Physical Society

Erscheinungsjahr

2021

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• We characterize experimentally and theoretically the high-energy dielectric screening properties of the prototypical correlated metal SrVO3. The dynamical structure factor measured by inelastic x-ray scattering spectroscopy as a function of momentum transfer is in very good agreement with first-principles calculations in the adiabatic local-density approximation to time-dependent density-functional theory. Our results reveal the crucial importance of crystal local fields in the charge response function of correlated materials: They lead to depolarization effects for localized excitations and couple spectra from different Brillouin zones.