Magnetic Structure of Nano-Graphite Moebius Ribbon

Details Magnetic Structure of Nano-Graphite Moebius Ribbon Magnetic Structure of Nano-Graphite Moebius Ribbon

2002-10-31

arxiv.org/abs/cond-mat/0210685v2

J. Phys. Soc. Jpn. Vol. 72 No. 5 pp. 998-1001 (2003)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages; 6 figures; published at J. Phys. Soc. Jpn. Vol. 72 No. 5 pp. 998-1001 (2003)

Scientific paper

10.1143/JPSJ.72.998

We consider the electronic and magnetic properties of nanographite ribbon with zigzag edges under the periodic or Moebius boundary conditions. The zigzag nano-graphite ribbons possess edge localized states at the Fermi level which cause a ferrimagnetic spin polarization localized at the edge sites even in the very weak Coulomb interaction. The imposition of the Moebius boundary condition makes the system non-AB-bipartite lattice, and depress the spin polarization, resulting in the formation of a magnetic domain wall. The width of the magnetic domain depends on the Coulomb interaction and narrows with increasing U/t.

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