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

Pedro Contreras; Michael Walker; Kirill Samokhin

doi:10.1103/PhysRevB.70.184528

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

Pedro Contreras, Michael Walker, Kirill Samokhin

DOI 10.1103/PhysRevB.70.184528 · Physical Review B

T1

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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 γ band on the one hand, and on the α and β bands on the other, are both found to be characterized by the existence of point nodes, but are significantly different in their quantitative aspects.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Sr2RuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	1.5	Pressure not reported	onset