2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/212995Quantum wires with periodic local Rashba spin-orbit couplings are proposed for a higher performance of spin field-effect transistor. Fano-Rashba quantum interference due to the spin-dependent modulated structure gives rise to a broad energy range of vanishingly small transmission. Tuning Rashba spin-orbit couplings can provide the on- or off-currents with extremely large on/off current ratios even in the presence of a strong disorder.4 pages, 6 figures, J. Appl. Phys., in pressMesoscale and Nanoscale PhysicsMaterials Sciencetext