Stable ferromagnetism and doping induced half-metallicity in asymmetric\n graphene nanoribbons

2012/01/23 by Donat J. Adams, Oliver Gröning, Adams, Donat J. +9
Engineering · Materials Science · #Advancements in Battery Materials #FOS: Physical sciences #Graphene research and applications #Materials Science (cond-mat.mtrl-sci) #Molecular Junctions and Nanostructures

paper · pdf · doi:10.48550/arxiv.1201.4735

openalex publication_date 2012/01/23 · openalex created_date 2022/09/28 · openalex updated_date 2026/07/28

Abstract

We propose a class of graphene nanoribbons showing strong intrinsic\nferromagnetic behavior due to their asymmetry. Such ribbons are based on a\nzig-zag edged backbone surmounted by a periodic, triangular notched region of\nvariable size. The electronic properties as a function of the topology are\ninvestigated. Interestingly, substitutional doping by boron or nitrogen induces\nhalf-metallicity. The most effective doping sites can be inferred from the band\nstructure. Given the present rapid development of bottom-up strategies for the\nsynthesis of atomically precise carbon nanostructures the proposed class of\nnanoribbons emerges as a real candidate for spintronic applications at ambient\ntemperature.\n

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