Absence of orbital-selective Mott transition in Ca_2-xSr_xRuO4

Abstract

Quasi-particle spectra of the layer perovskite Sr${}_2$RuO${}_4$ are calculated within Dynamical Mean Field Theory for increasing values of the on-site Coulomb energy $U$. At small $U$ the planar geometry splits the $t_{2g}$ bands near $E_F$ into a wide, two-dimensional $d_{xy}$ band and two narrow, nearly one-dimensional $d_{xz,yz}$ bands. At larger $U$, however, the spectral distribution of these states exhibit similar correlation features, suggesting a common metal-insulator transition for all $t_{2g}$ bands at the same critical $U$.

arXiv comment4 pages, 4 figures

References in corpus (14)

• Anomalous Normal-State Properties of High-T${}_c$ Superconductors -- Intrinsic Properties of Strongly Correlated Electron Systems?
• The Theory of Boundary Critical Phenomena
• Ferromagnetic spin fluctuation induced superconductivity in Sr_2RuO_4
• Finite temperature numerical renormalization group study of the Mott-transition
• Orbital dependent superconductivity in Sr_2RuO_4
• Competitions in layered ruthenates: ferro- vs. antiferromagnetism and triplet vs. singlet pairing
• Interband proximity effect and nodes of superconducting gap in Sr2RuO4
• Magnetic Phase Diagram of Ca2-xSrxRuO4 Governed by Structural Distortions
• From Mott insulator to ferromagnetic metal: a pressure study of Ca${}_2$RuO${}_4$
• Photoemission Quasi-Particle Spectra of Sr${}_2$RuO${}_4$
• Metallic surface of a Mott insulator - Mott insulating surface of a metal
• Evolution of spectral function in a doped Mott insulator : surface vs. bulk contributions
• Surface electronic structure of Sr2RuO4
• Weak-coupling approach to the semi-infinite Hubbard model: Non-locality of the self-energy

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