Relativistic ferromagnetic magnon at the zigzag edge of graphene

Jhih Shih You, Wen Min Huang, Hsiu Hau Lin

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

We study the spin-wave excitations near the zigzag edge of graphene. It is rather interesting that we obtain a single branch of relativistic ferromagnetic magnon due to the presence of the open boundary. Note that magnons in antiferromagnets appear in pairs, while the single branch magnon in ferromagnets does not have relativistic dispersion. Thus, the magnon near the zigzag edge of graphene is a hybrid of both, signaling its intrinsic property as a boundary excitation that must be embedded in a higher dimensional bulk system.

Original languageEnglish
Article number161404
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume78
Issue number16
DOIs
Publication statusPublished - 2008 Oct 22
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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