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Orbital non-Fermi-liquid behavior in cubic ruthenates

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posted on 10.07.2013 by Mukul S. Laad, I. Bradaric, Feodor Kusmartsev
We peruse various anomalous physical responses of the cubic (ferromagnetic SrRuO3 and paramagnetic CaRuO3) ruthenates, such as fractional power-law conductivity, anomalous Raman line shapes, and Hall currents. We show how these exciting power-law observations are naturally described within a new, local (orbital) non-Fermi-liquid state arising from strong, multiorbital Coulomb interactions. Introducing a multiorbital, correlated model treated within the dynamical mean-field theory, we also find two distinct relaxation rates for relaxation of transport in complete agreement with experiment.

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  • Science

Department

  • Physics

Citation

LAAD, M.S., BRADRIC, I. and KUSMARTSEV, F.V., 2008. Orbital non-Fermi-liquid behavior in cubic ruthenates. Physical Review Letters, 100 (9), 096402, 4pp.

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© American Physical Society

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VoR (Version of Record)

Publication date

2008

Notes

This article was published in the journal, Physical Review Letters [© American Physical Society].

ISSN

0031-9007

Language

en

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