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Thursday, December 03, 2015
4:00 PM - 5:00 PM
J.R. Oppenheimer Collaboration Space, LANL Library Big Room


Superconducting pairing in resonant inelastic X-ray scattering

Yifei Shi
University of Virginia

UPDATED TIME: Resonant inelastic X-ray scattering (RIXS) is a powerful tool for probing excitations in correlated systems. Here we develop a method to study the effect of the superconducting transition on 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.

Host: Kipton Barros