“…Since the discovery of graphene, graphene or graphene-related two-dimensional (2D) materials have attracted striking attention due to their special geometry and unique physicochemical properties. 1–4 In particular, in recent years, with the rapid development of information technology, there has been growing interest in “magnetic” graphene and other atom-thick 2D materials with magnetic features due to their promising potential in flexible spintronic devices. 5–7 Although pristine graphene is diamagnetic in nature, magnetism in graphene or graphene derivatives can be induced by the introduction of defects into the lattice, doping of the graphene lattice with heteroatoms, such as nitrogen and boron, and engineering of edges.…”