Magnetic nanographite
Materials Science
2009-11-07 v1 Strongly Correlated Electrons
Abstract
Hydrogenated nanographite can display spontaneous magnetism. Recently we proposed that hydrogenation of nanographite is able to induce finite magnetization. We have performed theoretical investigation of a graphene ribbon in which each carbon is bonded to two hydrogen atoms at one edge and to a single hydrogen atom at another edge. Application of the local-spin-density approximation to the calculation of the electronic band-structure of the ribbon shows appearance of a spin-polarized flat band at the Fermi energy. Producing different numbers of mono-hydrogenated carbons and di-hydrogenated carbons can create magnetic moments in nanographite.
Cite
@article{arxiv.cond-mat/0212391,
title = {Magnetic nanographite},
author = {Koichi Kusakabe and Masanori Maruyama},
journal= {arXiv preprint arXiv:cond-mat/0212391},
year = {2009}
}
Comments
4 pages, 3 Postscript figures, uses revtex4.cls, submitted to Phys. Rev. B