Disorder induced metallicity in amorphous graphene

Details Disorder induced metallicity in amorphous graphene Disorder induced metallicity in amorphous graphene

2011-04-29

arxiv.org/abs/1104.5535v1

Physics

Condensed Matter

Materials Science

Scientific paper

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 is minimal and we believe that it 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. Such metallic behaviour is a much desired property for functionalisation of graphene to realize a transparent conductor, e.g. suitable for touch-screen devices.

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