2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/103161This paper has been withdrawn by the authors due to a critical error discovered in Figures 1, 2 and 4.This paper has been withdrawnMaterials ScienceUltrafast laser excitation of spin waves by permanent modification of the exchange bias interaction in IrMn/Cotext