Deutsch
 
Benutzerhandbuch Datenschutzhinweis Impressum Kontakt
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT

Freigegeben

Zeitschriftenartikel

Interaction-Tuned Anderson versus Mott Localization

MPG-Autoren
/persons/resource/persons199971

Javanmard,  Younes
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

Volltexte (frei zugänglich)
Es sind keine frei zugänglichen Volltexte verfügbar
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Antipov, A. E., Javanmard, Y., Ribeiro, P., & Kirchner, S. (2016). Interaction-Tuned Anderson versus Mott Localization. Physical Review Letters, 117(14): 146601. doi:10.1103/PhysRevLett.117.146601.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-002B-B43F-1
Zusammenfassung
Disorder or sufficiently strong interactions can render a metallic state unstable, causing it to turn into an insulating one. Despite the fact that the interplay of these two routes to a vanishing conductivity has been a central research topic, a unifying picture has not emerged so far. Here, we establish that the two dimensional Falicov-Kimball model, one of the simplest lattice models of strong electron correlation, does allow for the study of this interplay. In particular, we show that this model at particle-hole symmetry possesses three distinct thermodynamic insulating phases and exhibits Anderson localization. The previously reported metallic phase is identified as a finite-size feature due to the presence of weak localization. We characterize these phases by their electronic density of states, staggered occupation, conductivity, and the generalized inverse participation ratio. The implications of our findings for other strongly correlated systems are discussed.