activity
20202025
most citedPhoto-induced charge-transfer renormalization in NiO

11 citations · 32 across the 6 of their papers we have counts for

collaborators

7 papers

cond-mat.str-el2025

Correlations drive the attosecond response of strongly-correlated insulators

Romain Cazali, Amina Alic, Matthieu Guer +8

Attosecond spectroscopy of materials has provided invaluable insight into light-driven coherent electron dynamics. However, attosecond spectroscopies have so far been focused on we…

cond-mat.str-el2023★ 11 cited

Photo-induced charge-transfer renormalization in NiO

Tobias Lojewski, Denis Golez, Katharina Ollefs +21

Photo-doped states in strongly correlated charge transfer insulators are characterized by - and - interactions and the resulting intertwined dynamics of charge excitati…

cond-mat.str-el2023★ 5 cited

Resonant inelastic x-ray scattering data for Ruddlesden-Popper and reduced Ruddlesden-Popper nickelates

G. Fabbris, D. Meyers, Y. Shen +10

Ruddlesden-Popper and reduced Ruddlesden-Popper nickelates are intriguing candidates for mimicking the properties of high-temperature superconducting cuprates. The degree of simila…

cond-mat.mtrl-sci2022★ 7 cited

A Rate Model of Electron Populations for Non-linear High-Fluence X-ray Absorption Near-Edge Spectra

Robin Y. Engel, Markus Scholz, Jan O. Schunck +1

Absorbing a focused, femtosecond X-ray pulse from a Free-Electron Laser (FEL) can lead to extreme electronic excitations in solids. This excitation drives changes of the electronic…

cond-mat.mtrl-sci2022★ 7 cited

Electron Dynamics at High-Energy Densities in Nickel from Non-linear Resonant X-ray Absorption Spectra

Robin Y. Engel, Oliver Alexander, Kaan Atak +40

The pulse intensity from X-ray free-electron lasers (FELs) can create extreme excitation densities in solids, entering the regime of non-linear X-ray-matter interactions. We show L…

cond-mat.mtrl-sci2021

Optical control of 4f orbital state in rare-earth metals

N. Thielemann-Kühn, T. Amrhein, W. Bronsch +28

A change of orbital state alters the coupling between ions and their surroundings drastically. Orbital excitations are hence key to understand and control interaction of ions. Rare…

cond-mat.mtrl-sci2020★ 2 cited

Time-Resolved XUV absorption spectroscopy and magnetic circular dichroism at the Ni -edges

Marcel Hennes, Benedikt Rösner, Valentin Chardonnet +21

Ultrashort optical pulses can trigger a variety of non-equilibrium processes in magnetic thin films affecting electrons and spins on femtosecond timescales. In order to probe the c…