Magnetic properties of Mn doped armchair graphene nanoribbon

Narjes Gorjizadeh, Yoshiyuki Kawazoe

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

We investigate the electronic structure and magnetism of an armchair graphene ribbon doped with Mn by first-pnnciples density functional calculations. Mn atoms are doped at the edge of the ribbon, with different densities. The local magnetic moment due to Mn atom is 5 μb /Mn for dilute doping and 4.5 μB/Mn for heavy doping. The structures of Mn doped at both edge of graphene ribbon were optimized in ferromagnetic and antiferromagnetic states to find the stable magnetic states of the two opposite ferromagnetic edges. Our calculations show that the ground state is ferromagnetic for heavy doping and does not have a preferable configuration for dilute doping because of the small energy difference. These structures have application in nanoelectromcs and spintronics.

Original languageEnglish
Pages (from-to)2445-2447
Number of pages3
JournalMaterials Transactions
Volume49
Issue number11
DOIs
Publication statusPublished - 2008 Nov 1

Keywords

  • Doping, magnetization
  • Graphene nanoribbon

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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