title: Obtaining high localized spin magnetic moments by fluorination of reduced graphene oxide.
abstract: Fluorination was confirmed to be the most effective route to introduce localized spins in graphene. However, adatoms clustering in perfect graphene lead to a low efficiency. In this study, we report experimental evidence of the generation of localized spin magnetic moments on defective graphene (reduced graphene oxide) through fluorination. More interstingly, the result shows that defects help increase the efficiency of the fluorination with regard to the density of magnetic moments created. Fluorinated reduced graphene oxide can have a high magnetic moment of 3.187 × 10(-3) μB per carbon atom and a high efficiency of 8.68 × 10(-3) μB per F atom. It may be attributed to the many vacancies, which hinder the clustering of F atoms, and introduce many magnetic edge adatoms.
authors.affiliation: Physics Department & Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, People's Republic of China.
authors.forename: Qian
authors.initials: Q
authors.lastname: Feng
authors.forename: Nujiang
authors.initials: N
authors.lastname: Tang
authors.forename: Fuchi
authors.initials: F
authors.lastname: Liu
authors.forename: Qingqi
authors.initials: Q
authors.lastname: Cao
authors.forename: Wenhai
authors.initials: W
authors.lastname: Zheng
authors.forename: Wencai
authors.initials: W
authors.lastname: Ren
authors.forename: Xiangang
authors.initials: X
authors.lastname: Wan
authors.forename: Youwei
authors.initials: Y
authors.lastname: Du