2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/141831It is shown that a strong impurity potential induces short-range antiferromagnetic (ferrimagnetic) order around itself in a Hubbard model on a half-filled honeycomb lattice. This implies that short-range magnetic order is induced in monolayer graphene by a nonmagnetic defect such as a vacancy with full hydrogen termination or a chemisorption defect.5 pages, 8 figuresStrongly Correlated Electronstext