Disorder-induced metallicity in amorphous graphene

2011/04/29 by E. Holmstrom, Erik Holmström, J. Fransson +9 · 1 citation
Chemistry · Materials Science · Physics and Astronomy · #Amorphous solid #Carbon Nanotubes in Composites #Chemistry #Condensed matter physics #Conductance #Crystallography #Graphene #Graphene research and applications #Lattice (music) #Materials science #Nanotechnology #Physics #Statistical physics #Surface and Thin Film Phenomena #cond-mat.mtrl-sci

paper · pdf · doi:10.1103/physrevb.84.205414

arxiv created 2011/04/29 · openalex publication_date 2011/11/11 · arxiv updated 2015/05/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We predict a transition to metallicity when a sufficient amount of disorder is induced in graphene. Calculations were performed by means of a first-principles stochastic quench method. The resulting amorphous graphene can be seen as nanopatches of graphene that are connected by a network of disordered small and large carbon rings. The buckling of the lattice is minimal and is a result of averaging of counteracting random in-plane stress forces. The linear response conductance is obtained by a model theory as function of lattice distortions, and results in a similar behavior as the first-principles calculation.

Citations

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