Andreev-Bragg Reflection from an Amperian Superconductor
Andreev-Bragg Reflection from an Amperian Superconductor
We show how an electrical measurement can detect the pairing of electrons on the same side of the Fermi surface (Amperian pairing), recently proposed by Patrick Lee for the pseudogap phase of high-Tc cuprate superconductors. Bragg scattering from the pair-density wave introduces odd multiples of 2k(F) momentum shifts when an …