Superconducting-gap-node spectroscopy using nonlinear electrodynamics
Superconducting-gap-node spectroscopy using nonlinear electrodynamics
We present a method to determine the nodal structure of the energy gap of unconventional superconductors such as high-${T}_{c}$ materials. We show how nonlinear electrodynamics phenomena in the Meissner regime, arising from the presence of lines on the Fermi surface where the superconducting energy gap is very small or zero, …