Evidence against strong correlation in 4d transition metal oxides, CaRuO3 and SrRuO3

Abstract

We investigate the electronic structure of 4d transition metal oxides, CaRuO3 and SrRuO3. The analysis of the photoemission spectra reveals significantly weak electron correlation strength (U/W ~ 0.2) as expected in 4d systems and resolves the long standing issue that arose due to the prediction of large U/W similar to 3d-systems. It is shown that the bulk spectra, thermodynamic parameters and optical properties in these systems can consistently be described using first principle approaches. The observation of different surface and bulk electronic structures in these weakly correlated 4d systems is unusual.

4 pages, 4 figures

References in corpus (7)

• Mott transition and suppression of orbital fluctuations in orthorhombic 3$d^1$ perovskites
• Transport Properties, Thermodynamic Properties, and Electronic Structure of SrRuO3
• Electronic structure and magnetism in Ru based perovskites
• Surface vs. bulk Coulomb correlations in photoemission spectra of perovskites
• Electronic structure of Ca${}_{1-x}$Sr${}_x$VO${}_3$: a tale of two energy-scales
• Evolution of spectral function in a doped Mott insulator : surface vs. bulk contributions
• Spectral evolution in (Ca,Sr)RuO_3 near the Mott-Hubbard transition

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