2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/17166We study spin-dependent electronic transport across ferromagnet/superconductor ballistic junctions modeled using tight-binding Hamiltonians with s, p and d orbitals and material-specific parameters. We show that by accurately modeling the band structure of the bulk materials, one can reproduce the measured differential conductance of Cu/Pb nanocontacts. In contrast the differential conductance of Co/Pb contacts can only be reproduced if an enhanced magnetic moment is present at the interface.4 pages, 4 figuresMesoscale and Nanoscale PhysicsSuperconductivitytext