title: Electronic and magnetic properties of C-adsorbed graphene: a first-principles study.
abstract: Using density functional theory, we consider the adsorption of C on graphene, which gives rise to many interesting phenomena. A single-C at the bridge site shows a clearly covalent-bond feature with graphene, in which the metallic state occurs and a magnetic moment of 0.36 μ(B) was determined. For both-sided adsorption, the magnetic moment is remarkably larger than that in one-sided adsorption, and increases with concentration up to a coverage of 12.5%. High spin polarization obtained at the Fermi level indicates a high degree of passage of preferred spin, which is important for developing spin filters.
authors.affiliation: Department of Applied Physics, University of Electronic Science and Technology of China, Chengdu, PR China.
authors.forename: Y G
authors.initials: YG
authors.lastname: Zhou
authors.forename: Z G
authors.initials: ZG
authors.lastname: Wang
authors.forename: P
authors.initials: P
authors.lastname: Yang
authors.forename: X T
authors.initials: XT
authors.lastname: Zu
authors.forename: H Y
authors.initials: HY
authors.lastname: Xiao
authors.forename: X
authors.initials: X
authors.lastname: Sun
authors.forename: M A
authors.initials: MA
authors.lastname: Khaleel
authors.forename: F
authors.initials: F
authors.lastname: Gao