2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/130339We demonstrate theoretically the possibility to produce a pure spin current in graphene by filtering the charge from a spin-polarized electric current. To achieve this effect, which is based on the recently predicted property of specular Andreev reflection in graphene, we propose two possible device structures containing normal-superconductor (NS) junctions.5 pages, 3 figuresMesoscale and Nanoscale Physicstext