engineering department of advanced materials and Nano technology, applied physics and technology http://mybestbuddie.com/profiles/blogs/american-oak-ridge-national-laboratory research center of Peking University professor chang team’s paper “Ferromagnetism in Semihydrogenated graphene sheet” (http://pubs.acs.org/doi/pdfplus/10.1021/nl9020733), xrdcarbon.strikingly.com which reported they are the latest achievements of the studies on the monolayer graphene magnetic.Single-layer graphene (graphene) is currently one of the most hot research field on international, it is a kind of nonmagnetic metal materials with zero band gap, have many novel physical properties and wide application prospect.In order to make graphene have magnetic, scientists have proposed all sorts of measures, such as china graphite supplier shear it with zigzag configurations of zero or one dimensional http://xrdcarbon.strikingly.com/ nano – ribbon structure, or producing defects and the introduction of impurity atoms, etc.The existing these methods not only destroyed the structural integrity of graphene, produced by http://www.fcigz.com/bbs/boke.asp?xrdcarbon.showtopic.18362.html the magnetic distribution is non-uniform, and the experiment on the difficult to control.Professor chang team through half of hydrogenation method is proposed for the first time to realize the ideas of the ferromagnetic in graphene, and named half hydrogenated graphene graphone, this is the following the graphene, graphite supplier introduced by graphane after a new structure form.Professor chang team application spin-polarized density functional theory, the study found that when the hydrogen “20151019xrd” adsorption on the part of the graphene china graphite carbon atoms, graphene PI was damaged, result in each no hydrogenated carbon atoms produced a 2 p unpaired electrons, long-range exchange coupling between them, forming stable ferromagnetism, the Curie temperature in about 278 ~ 417 K.Than the known method is more controllable and operability, it not only can maintain the structural integrity of graphene skeleton and the uniform distribution of magnetic, but also can avoid in the process of assembling nano – ribbon caused by magnetic essence.The results of the study will be expanding graphene sheet application prospect, this new
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