Magnetic moments in the presence of topological defects in graphene
Magnetic moments in the presence of topological defects in graphene
We study the influence of pentagons and heptagons, dislocations, and other topological defects breaking the sublattice symmetry on the magnetic properties of a graphene lattice. It is known that vacancies and other defects involving uncoordinated atoms induce localized magnetic moments in the lattice. Within the Hubbard model the total spin …