Evidence of nodal gap structure in the basal plane of the FeSe superconductor
Evidence of nodal gap structure in the basal plane of the FeSe superconductor
Identifying the symmetry of the wave function describing the Cooper pairs is pivotal in understanding the origin of high-temperature superconductivity in iron-based superconductors. Despite nearly a decade of intense investigation, the answer to this question remains elusive. Here, we use the muon spin rotation/relaxation ($\ensuremath{\mu}\mathrm{SR}$) technique to investigate the underlying …