2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/29435We discuss a simple, semiclassical scattering theory for spin-dependent transport in a many-terminal formulation, with special attention to the four terminal device of Johnson referred to as spin transistorTo be published in Acta Physica PolonicaMesoscale and Nanoscale Physicstext