Orbital dependent superconductivity in Sr_2RuO_4

Abstract

We show that for superconducting Sr_2RuO_4 any unconventional pairing in the part of the Fermi surface with Ru 4d-xy orbital character is weakly coupled to that with Ru 4d-xz, 4d-yz orbital character. This naturally gives rise to two disparate energy scales in the superconducting state which leads to novel low temperature properties in a variety of thermodynamic and transport properties and which would also account for the large residual density of states seen in specific heat and NQR measurements.

5 pages, RevTex, 2 figures

Cited by in corpus (127)

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• Evaluation of Spin-Triplet Superconductivity in Sr2RuO4
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• Superconducting Gap Structure of Spin-Triplet Superconductor Sr_2RuO_4 Studied by Thermal Conductivity
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• Interband proximity effect and nodes of superconducting gap in Sr2RuO4
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• Microscopic Identification of the D-vector in Triplet Superconductor Sr_2RuO_4
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• Phase-sensitive tests of the pairing state symmetry in Sr2RuO4
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• Lattice dynamics and electron-phonon coupling in Sr2RuO4
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• Superconductivity in Sr${}_2$RuO${}_4$ Mediated by Coulomb Scattering
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• Electronic theory for superconductivity in Sr${}_2$RuO${}_4$: triplet pairing due to spin-fluctuation exchange
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• Fluctuation and strain effects in a chiral $p$-wave superconductor
• Theory of Transport Properties in the p-wave Superconducting State of Sr2RuO4 - A Microscopic Determination of the Gap Structure -
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• Leggett modes and multi-band superconductivity in Sr2RuO4
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• Spin waves in a two dimensional p-wave superconductor: Sr${}_2$RuO${}_4$
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• A review of some new perspectives on the theory of superconducting Sr${}_2$RuO${}_4$
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• Probing Pairing Symmetry in Sr${}_2$RuO${}_4$
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• Triplet pairing due to spin-orbit-assisted electron-phonon coupling
• Possible anomalous Doppler shift effect in superconductor Sr${}_2$RuO${}_4$
• Even odder after twenty-three years: the superconducting order parameter puzzle of Sr2RuO4
• Internal Transition of Superconducting State by Impurity Doping with a Jump of Isotope-effect Coefficient in Multiband Superconductors
• Polar Kerr Effect in Multiband Spin-Orbit Coupled Superconductors
• Multi-band D-TRILEX approach to materials with strong electronic correlations
• Real-space orbital tiling approach for the design of novel superconductors
• Eliminating Orbital Selectivity from the Metal-Insulator Transition by Strong Magnetic Fluctuations