Effect of f-level on the density of states of magnetic superconductors

摘要: Abstract We address a Hamiltonian model to study the coexistence of antiferromagnetism (AFM) and superconductivity (SC) in presence hybridization between conduction electron localized f -level. The AFM SC long range orders are formulated for Cu–O plane with an s -wave type pairing symmetry mediated by some boson exchanges. interplay these two is studied through calculated c -electron density states (DOS) as well DOS. attempt here interpret complex tunneling spectra based upon our calculation. This predicts gaps due low lying excitations appearing near Fermi level, gap structure consistent gapless superconductivity, showing U-shaped symmetry. calculation helps separately calculate order parameters under special condition weak – hybridization.