Work

Orbital-Selective Mott Transitions in the Degenerate Hubbard Model

Year: 2004

Type: article

Abstract: We investigate the Mott transitions in two-band Hubbard models with different bandwidths. Applying dynamical mean field theory, we discuss the stability of itinerant quasiparticle states in each band. We demonstrate that separate Mott transitions occur at different Coulomb interaction strengths in general, which merge to a single transition only under special conditions. This kind of behavior may be relevant for the physics of the single-layer ruthenates, Ca2-xSrxRuO4.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.92.216402

Authors: Akihisa Koga, Norio Kawakami, T. M. Rice, Manfred Sigrist

Institutions: ETH Zurich, The University of Osaka

Language: English

Topic: Physics of Superconductivity and Magnetism

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung

OpenAlex ID: W2013424889

FWCI: 17.28

Cites: 26

Cited by: 311

Related to: 10