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  4. Versatile Approach to the Spin Dynamics in Correlated Electron Systems
 
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Versatile Approach to the Spin Dynamics in Correlated Electron Systems

Publikationstyp
Journal Article
Date Issued
2016
Sprache
English
Author(s)
Behrmann, Malte  
Lichtenstein, Alexander I.  
Katsnelson, Mikhail  
Lechermann, Frank  
Institut
Keramische Hochleistungswerkstoffe M-9  
TORE-URI
http://hdl.handle.net/11420/5209
Journal
Physical Review B - Condensed Matter and Materials Physics  
Volume
94
Issue
16
Article Number
165120
Citation
Phys. Rev. B 94, 165120 (2016) 16 (94): Artikel Nr. 165120 (2016)
Publisher DOI
10.1103/PhysRevB.94.165120
Scopus ID
2-s2.0-84992128512
Publisher
American Physical Society (APS)
Time-dependent spin phenomena in condensed matter are most often either described in the weakly correlated limit of metallic Stoner/Slater-like magnetism via band theory or in the strongly correlated limit of Heisenberg-like interacting spins in an insulator. However many experimental studies, e.g. of (de)magnetization processes, focus on itinerant local-moment materials such as transition metals and various of their compounds. We here present a general theoretical framework that is capable of addressing correlated spin dynamics, also in the presence of a vanishing charge gap. A real-space implementation of the time-dependent rotational-invariant slave boson methodology allows to treat non-equilibrium spins numerically fast and efficiently beyond linear response as well as beyond the band-theoretical or Heisenberg limit.
DDC Class
500: Naturwissenschaften
530: Physics
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