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  4. Realistic many-body approaches to materials with strong nonlocal correlations
 
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Realistic many-body approaches to materials with strong nonlocal correlations

Citation Link: https://doi.org/10.15480/882.2009
Publikationstyp
Journal Article
Date Issued
2017-07-10
Sprache
English
Author(s)
Lechermann, Frank  
Lichtenstein, Alexander I.  
Potthoff, Michael  
Institut
Keramische Hochleistungswerkstoffe M-9  
TORE-DOI
10.15480/882.2009
TORE-URI
https://tubdok.tub.tuhh.de/handle/11420/2012
Journal
European physical journal special topics  
Volume
226
Issue
11
Start Page
2591
End Page
2631
Citation
European Physical Journal: Special Topics 11 (226): 2591-2613 (2017)
Publisher DOI
10.1140/epjst/e2017-70051-3
Scopus ID
2-s2.0-85021731207
Publisher
Springer
Many of the fascinating and unconventional properties of several transition-metal compounds with partially filled d-shells are due to strong electronic correlations. While local correlations are in principle treated exactly within the frame of the dynamical mean-field theory, there are two major and interlinked routes for important further methodical advances: On the one hand, there is a strong need for methods being able to describe material-specific aspects, i.e., methods combining the DMFT with modern band-structure theory, and, on the other hand, nonlocal correlations beyond the mean-field paradigm must be accounted for. Referring to several concrete example systems, we argue why these two routes are worth pursuing and how they can be combined, we describe several related methodical developments and present respective results, and we discuss possible ways to overcome remaining obstacles.
Subjects
density functional theory
DDC Class
530: Physik
Funding Organisations
Deutsche Forschungsgemeinschaft (DFG)  
Lizenz
https://creativecommons.org/licenses/by/4.0/
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