2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/230830Persistent current in one-dimensional non-superconducting mesoscopic rings threaded by a slowly varying magnetic flux $ϕ$ is studied based on the tight-binding model. The behavior of the persistent current is discussed in three aspects: (a) single hopping impurity, (b) in-plane electric field and (c) in presence of some foreign atoms.12 pages, 8 figuresMesoscale and Nanoscale Physicstext