Unconventional Magnetism in Carbon Based Materials

Monovacancy-induced magnetism in graphene bilayers

“…The other C atom with a dangling bond protrudes slightly toward the lower layer. The unsaturated dangling bond in B 2 is somewhat closer to C atoms in the lower layer than that in B 1 , so that the perturbation from the interlayer interaction may result in the total energy of B 2 being lower than that of B 1 by 0.03 eV, owing to the weakening of the dangling bond [5].…”

“…Of particular interest, both technologically and academically, are the vacancy defects in nanostructures of sp 2 -bonded carbon-based nanostructures [1,2]. They exhibit roomtemperature (RT) ferromagnetism [3], and the underlying physics of their ferromagnetism is different from that of conventional ferromagnetic metals such as iron and cobalt [4,5]. Successive progress in the understanding of ferromagnetism in carbon-based nanostructures has been achieved by theoretical approaches based on spin-polarized density functional theory [6][7][8][9] and experiments on irradiated carbon nanostructures [10][11][12].…”