Coherence-incoherence crossover and the mass-renormalization puzzles in Sr2RuO4

Jernej Mravlje, Markus Aichhorn, Takashi Miyake, Kristjan Haule, Gabriel Kotliar, Antoine Georges

Research output: Contribution to journalArticlepeer-review

144 Scopus citations

Abstract

We calculate the electronic structure of Sr2RuO4, treating correlations within dynamical mean-field theory. The approach successfully reproduces several experimental results and explains the key properties of this material: the anisotropic mass renormalization of quasiparticles and the crossover into an incoherent regime above a low temperature scale. While the orbital differentiation originates from the proximity of the van Hove singularity, strong correlations are caused by the Hund's coupling. The generality of this mechanism for other correlated materials is pointed out.

Original languageEnglish (US)
Article number096401
JournalPhysical review letters
Volume106
Issue number9
DOIs
StatePublished - Mar 2 2011

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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