2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/25891We briefly review the phenomenon of the spin-double refraction that originates at an interface separating a two-dimensional electron gas with Rashba spin-orbit coupling from a one without. We demonstrate how this phenomenon in semiconductor heterostructures can produce and control a spin-polarized current without ferromagnetic leads.Mesoscale and Nanoscale Physicstext