Affiliation:
1. Department of Applied Physics, University of Tokyo, Hongo, Japan
Abstract
Graphane is obtained by perfectly hydrogenating graphene. There exists an intermediate material, partially hydrogenated graphene (which we call hydrographene), interpolating from pure graphene to pure graphane. Employing a graph theoretical approach to the site-percolation model, we present an intuitive and physical picture revealing a percolation transition from graphene to graphane. It is demonstrated that hydrographene shows a bulk ferromagnetism based on the Lieb theory. We also propose a weighted percolation model in order to take into account the tendency of hydrogenation to cluster.
Subject
Electrical and Electronic Engineering,Ceramics and Composites,Electronic, Optical and Magnetic Materials,Biotechnology
Cited by
3 articles.
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