The interplay of local electron correlations and ultrafast spin dynamics in fcc Ni
OPEN ACCESS
Loading...
Author / Producer
Date
2023-08-03
Publication Type
Journal Article
ETH Bibliography
yes
Citations
Altmetric
OPEN ACCESS
Data
Abstract
The complex electronic structure of metallic ferromagnets is determined by a balance between exchange interaction, electron hopping leading to band formation, and local Coulomb repulsion. By combining high energy and temporal resolution in femtosecond time-resolved X-ray absorption spectroscopy with ab initio time-dependent density functional theory we analyze the electronic structure in fcc Ni on the time scale of these interactions in a pump-probe experiment. We distinguish transient broadening and energy shifts in the absorption spectra, which we demonstrate to be captured by electron repopulation respectively correlation-induced modifications of the electronic structure, requiring to take the local Coulomb interaction into account.
Permanent link
Publication status
published
External links
Editor
Book title
Journal / series
Volume
11 (8)
Pages / Article No.
655 - 661
Publisher
Taylor & Francis
Event
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
Ferromagnetism; local correlations; ultrafast dynamics; time-resolved x-ray absorption spectroscopy; time-dependent density functional theory