Superconducting pairing in resonant inelastic x-ray scattering

Yifei Shi; David Benjamin; Eugene Demler; Israel Klich

doi:10.1103/PhysRevB.94.094516

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Superconducting pairing in resonant inelastic x-ray scattering

Yifei Shi, David Benjamin, Eugene Demler, Israel Klich

DOI 10.1103/PhysRevB.94.094516 · Physical Review B

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Abstract

We develop a method to study the effect of the superconducting transition on the resonant inelastic x-ray scattering (RIXS) signal in superconductors with an order parameter with an arbitrary symmetry within a quasiparticle approach. As an example, we compare the direct RIXS signal below and above the superconducting transition for p-wave-type order parameters. For a p-wave order parameter with a nodal line, we show that, counterintuitively, the effect of the gap is most noticeable for momentum transfers in the nodal direction. This phenomenon may be naturally explained as a type of nesting effect.

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.	—	Pressure not reported	unknown