Determining the superconducting gap structure in Sr2RuO4 from sound attenuation studies below Tc

Abstract

This work presents a quantitative theoretical study of the sound attenuation in the unconventional multiband superconductor Sr2RuO4 below the superconducting transition temperature Tc. Sound attenuation in this material is shown to have the remarkable property of being able to identify different nodal structures on different bands. The nodal structures on the γband on the one hand, and on the αand βbands on the other, are both found to be characterized by the existence of point nodes, but are significantly different in their quantitative aspects.

7 pages, REVTeX

References in corpus (12)

• Time-Reversal Symmetry Breaking Superconductivity in Sr2RuO4
• Ferromagnetic spin fluctuation induced superconductivity in Sr_2RuO_4
• Gap Structure of the Spin-Triplet Superconductor Sr2RuO4 Determined from the Field-Orientation Dependence of Specific Heat
• Interband proximity effect and nodes of superconducting gap in Sr2RuO4
• Ultrasound Attenuation in Sr${}_2$RuO${}_4$: an Angle-Resolved Study of the Superconducting Gap Function
• Spin triplet superconductivity with line nodes in Sr2RuO4
• Identifying the pairing symmetry in the Sr2RuO4 superconductor
• Anisotropy of the incommensurate fluctuations in Sr2RuO4: a study with polarized neutrons
• Ultrasound attenuation in gap-anisotropic systems
• Electron-Phonon Interaction and Ultrasonic Attenuation in the Ruthenate and Cuprate superconductors
• Spin triplet superconductivity in Sr2RuO4
• Transport and the Order Parameter of Superconducting UPt3

Cited by in corpus (11)

• Phase-sensitive tests of the pairing state symmetry in Sr2RuO4
• Theory of Transport Properties in the p-wave Superconducting State of Sr2RuO4 - A Microscopic Determination of the Gap Structure -
• Scattering due to non-magnetic disorder in 2D anisotropic d-wave high Tc superconductors
• Dressed behavior of the quasiparticles lifetime in the unitary limit of two unconventional superconductors
• Evening out the spin and charge parity to increase T${}_c$ in unconventional superconductor Sr_{2}RuO_{4}
• Quasi-point versus point nodes in $S{r}_{2}Ru{O}_4$, the case of a flat tight binding $\gamma$ sheet
• Tight-Binding Superconducting Phases in the Unconventional Compounds Strontium-Substituted Lanthanum Cuprate and Strontium Ruthenate
• Effect of superconducting fluctuations on ultrasound in unconventional superconductor
• Self-Consistent Study of the Superconducting Gap in the Strontium-doped Lanthanum Cuprate
• Non-magnetic tight binding disorder effects in the $\gamma$ sheet of $S{r}_{2}Ru{O}_4$
• The role of transverse anisotropic elastic waves and Ehrenfest relationships in the superconducting state of the compound Sr${}_2$RuO${}_4$