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A unified geometric rule for designing nanomagnetism in graphene

Journal Article


Abstract


  • Based on the underlying graphene lattice symmetry and an itinerant magnetism model on a bipartite lattice, we propose a unifi ed geometric rule for designing graphene-based magnetic nanostructures: spins are parallel (ferromagnetic (FM)) on all zigzag edges which are at angles of 0° and 120° to each other, and antiparallel (antiferromagnetic (AF)) at angles of 60° and 180°. The rule is found to be consistent with all the systems that have been studied so far. Applying the rule, we predict several novel graphene-based magnetic nanostructures: 0-D FM nanodots with the highest possible magnetic moments, 1-D FM nanoribbons, and 2-D magnetic superlattices.

UOW Authors


  •   Yu, Decai (external author)
  •   Lupton, Elizabeth M. (external author)
  •   Gao, Huijun (external author)
  •   Zhang, C
  •   Liu, Feng (external author)

Publication Date


  • 2008

Citation


  • Yu, D., Lupton, E. M., Gao, H. J., Zhang, C. & Liu, F. (2008). A unified geometric rule for designing nanomagnetism in graphene. Nano Research, 1 (6), 497-501.

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2851

Number Of Pages


  • 4

Start Page


  • 497

End Page


  • 501

Volume


  • 1

Issue


  • 6

Abstract


  • Based on the underlying graphene lattice symmetry and an itinerant magnetism model on a bipartite lattice, we propose a unifi ed geometric rule for designing graphene-based magnetic nanostructures: spins are parallel (ferromagnetic (FM)) on all zigzag edges which are at angles of 0° and 120° to each other, and antiparallel (antiferromagnetic (AF)) at angles of 60° and 180°. The rule is found to be consistent with all the systems that have been studied so far. Applying the rule, we predict several novel graphene-based magnetic nanostructures: 0-D FM nanodots with the highest possible magnetic moments, 1-D FM nanoribbons, and 2-D magnetic superlattices.

UOW Authors


  •   Yu, Decai (external author)
  •   Lupton, Elizabeth M. (external author)
  •   Gao, Huijun (external author)
  •   Zhang, C
  •   Liu, Feng (external author)

Publication Date


  • 2008

Citation


  • Yu, D., Lupton, E. M., Gao, H. J., Zhang, C. & Liu, F. (2008). A unified geometric rule for designing nanomagnetism in graphene. Nano Research, 1 (6), 497-501.

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2851

Number Of Pages


  • 4

Start Page


  • 497

End Page


  • 501

Volume


  • 1

Issue


  • 6