Logo del repository
  1. Home
 
Opzioni

Orbital selectivity in Hund's metals: The iron chalcogenides

Lanata, N
•
Strand, H. U. R
•
Giovannetti, G
altro
Capone, Massimo
2013
  • journal article

Periodico
PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS
Abstract
We show that electron correlations lead to a bad metallic state in chalcogenides FeSe and FeTe despite the intermediate value of the Hubbard repulsion U and Hund's rule coupling J. The evolution of the quasiparticle weight Z as a function of the interaction terms reveals a clear crossover at U similar or equal to 2.5 eV. In the weak coupling limit Z decreases for all correlated d orbitals as a function of U and beyond the crossover coupling they become weakly dependent on U while strongly dependent on J. A marked orbital dependence of the Z's emerges even if in general the orbital-selective Mott transition only occurs for relatively large values of U. This two-stage reduction of the quasiparticle coherence due to the combined effect of Hubbard U and the Hund's J suggests that the iron-based superconductors can be referred to as Hund's correlated metals. DOI: 10.1103/PhysRevB.87.045122
DOI
10.1103/PhysRevB.87.045122
WOS
WOS:000313941800001
Archivio
http://hdl.handle.net/20.500.11767/11686
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84873032119
https://arxiv.org/abs/1211.2015
Diritti
metadata only access
Soggetti
  • Settore FIS/03 - Fisi...

Scopus© citazioni
85
Data di acquisizione
Jun 2, 2022
Vedi dettagli
Web of Science© citazioni
92
Data di acquisizione
Mar 28, 2024
Visualizzazioni
4
Data di acquisizione
Apr 19, 2024
Vedi dettagli
google-scholar
Get Involved!
  • Source Code
  • Documentation
  • Slack Channel
Make it your own

DSpace-CRIS can be extensively configured to meet your needs. Decide which information need to be collected and available with fine-grained security. Start updating the theme to match your nstitution's web identity.

Need professional help?

The original creators of DSpace-CRIS at 4Science can take your project to the next level, get in touch!

Realizzato con Software DSpace-CRIS - Estensione mantenuta e ottimizzata da 4Science

  • Impostazioni dei cookie
  • Informativa sulla privacy
  • Accordo con l'utente finale
  • Invia il tuo Feedback