Low Temperature Physics: 34, 805 (2008); https://doi.org/10.1063/1.2981392 (7 pages)
Физика Низких Температур: Том 34, Выпуск 10 (Октябрь 2008), c. 1025-1032    ( к оглавлению , назад )

Tight-binding study of nonmagnetic-defect-induced magnetism in graphene

H. Kumazaki and D.S. Hirashima

Department of Physics, Nagoya University, Nagoya 464-8602, Japan
E-mail: dai@slab.phys.nagoya-u.ac.jp

Received March 3, 2008


This review describes a study of nonmagnetic-defect-induced magnetism of graphene on the basis of a tight-binding model. A vacancy induces a quasilocalized impurity state at the chemical potential around itself, and it leads to formation of local magnetic moments. Connection between a quasilocalized state around a vacancy and the edge localized states near a zigzag edge is studied in detail. Magnetism associated with many vacancies and edge structures is also reviewed. Some new results of magnetism associated with many vacancies are presented.

PACS: 75.75.+a Magnetic properties of nanostructures;
PACS: 73.20.At Surface states, band structure, electron density of states;
PACS: 75.70.Ak Magnetic properties of monolayers and thin films.

Key words: graphene, magnetism, defects, edges.