Interlayer Coupling and p-wave Pairing in Strontium Ruthenate

Abstract

On the basis of a three orbital model and an effective attractive interaction between electrons we investigate the possible superconducting states, with $p$ and $f$-wave internal symmetry, of Sr${}_2$RuO${}_4$. For an orbital dependent interaction which acts between in plane and out of plane nearest neighbour Ruthenium atoms we find a state for which the gap in the quasi-particle spectra has a line node on the $\alpha$ and $\beta$ sheets of the Fermi Surface, but it is complex with no nodes on the $\gamma$-sheet. We show that this state is consistent with all the available experimental data. In particular, we present the results of our calculations of the specific heat and penetration depth as functions of the temperature.

4 pages, 5 figures

References in corpus (2)

• Superconducting Gap Structure of Spin-Triplet Superconductor Sr_2RuO_4 Studied by Thermal Conductivity
• Interband proximity effect and nodes of superconducting gap in Sr2RuO4

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• Superconducting order parameter of Sr${}_2$RuO${}_4$: a microscopic perspective
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• The Kerr rotation in the unconventional superconductor Sr${}_2$RuO${}_4$
• Spin-Orbit Coupling and Symmetry of the Order Parameter in Strontium Ruthenate
• Entangled Orbital Triplet Pairs in Iron-Based Superconductors
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• Vortex coalescence and type-1.5 superconductivity in Sr2RuO4
• Superconductivity in Sr${}_2$RuO${}_4$ Mediated by Coulomb Scattering
• Supercurrent in Nodal Superconductors
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• Pauli-paramagnetic effects on mixed state properties in a strongly anisotropic superconductor ---Application to Sr_2_RuO_4_---
• Magnetic field induced rotation of the d-vector in the spin triplet superconductor Sr${}_2$RuO${}_4$
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• Anomalous Hall conductivity of clean Sr2RuO4 at finite temperatures
• Low temperature electronic properties of Sr_2RuO_4 II: Superconductivity
• Is the anisotropy of the upper critical field of Sr${}_2$RuO${}_4$ consistent with a helical $p$-wave state?
• Horizontal line nodes in superconducting Sr2RuO4
• Interband Coulomb Interaction and Horizontal Line Nodes in Triplet Superconductor Sr${}_2$RuO${}_4$
• Critical Current of the Spin-Triplet Superconducting Phase in Sr${}_2$RuO${}_4$
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• The Berry curvature of the Bogoliubov quasiparticle Bloch states in the unconventional superconductor Sr${}_2$RuO${}_4$
• Low temperature electronic properties of Sr_2RuO_4 I: Microscopic model and normal state properties
• Triplet pairing due to spin-orbit-assisted electron-phonon coupling
• Magnetic field induced rotation of the d-vector in Sr_2RuO_4
• Even odder after twenty-three years: the superconducting order parameter puzzle of Sr2RuO4
• Engineering Frequency-dependent Superfluidity in Bose-Fermi Mixtures
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