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Long Jing, Ping Huang, Huarui Zhu and Xueyun Gao Spin-Polarized Semiconductors: Tuning the Electronic Structure of Graphene by Introducing a Regular Pattern of sp3 Carbons on the Graphene Plane Small 9

Version of Record online: 2 OCT 2012 | DOI: 10.1002/smll.201201100

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A superlattice structure of nitrophenyl diazonium functionalized graphene is deduced from experimental results. The van der Waals interactions between nitrophenyl groups strengthen its stability even though it is a non-Kekule structure. Unpaired quasi-localized p electrons lead to ferrimagnetic coupling and open a wider bandgap. The large spin-up density forms a triangular lattice and the small spin-down density forms a kagome lattice.

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