Intrinsic magnetism of monolayer graphene oxide quantum dots

• DOI: 10.1063/1.4940054
• Publication Date: 2016-01-20T20:25:36Z
• Authors: Yuanyuan Sun; Yongping Zheng; Jie Chen; Weili Zhang; Nujiang Tang; Youwei Du
• Keywords: Magnetism

Monolayer graphene oxide quantum dots (GOQDs) were obtained by oxidative cutting. The magnetic properties of GOQDs studied. results show that most are nonmagnetic, and only few weakly paramagnetic. ratio with the average diameter 4.13, 3.3, 1.67 nm is 1/14, 1/15, 1/70, respectively. It proposed edge states magnetism suppressed defects and/or correlation induced spins cancellation between fragments boundary, hydroxyl groups on basal plane major source GOQDs.