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Ferromagnetism in nanomesh graphene.

Guoqing Ning*,, ; Chenggen Xu*,, ; Hao, L; Kazakova, O; Zhuangjun Fan*,, ; Hao, Wang*; Kunxun Wang*,, ; Jinsen Gao*,, ; Weizhong Qian*,, ; Fei Wei*, (2013) Ferromagnetism in nanomesh graphene. Carbon, 51. pp. 390-396.

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Abstract

A nanomesh graphene (NMG) was produced by a chemical vapor deposition using porous MgO layers as templates, and its magnetic properties were measured and compared with those of reduced graphene oxide (rGO). Extraordinary ferromagnetism with a saturation magnetization of 0.04 emu/g at room temperature was found in the NMG, four times of that of rGO (0.01 emu/g). The mesh structure with remarkable corrugations indicates the possible existence of a high density of defects in the NMG, which is believed to contribute to the origin of the ferromagnetism. Our results present a direct connection between the mesh structure and the ferromagnetism, which provides valuable clues to explore the essential origination of carbon magnetism.

Item Type: Article
Keywords: graphene ferromagnetism
Subjects: Nanoscience
Nanoscience > Nano-Materials
Identification number/DOI: 10.1016/j.carbon.2012.08.072
Last Modified: 02 Feb 2018 13:14
URI: http://eprintspublications.npl.co.uk/id/eprint/5870

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