Quantum hall ferromagnetism in graphene

Kentaro Nomura, Allan H. MacDonald

Research output: Contribution to journalArticlepeer-review

607 Citations (Scopus)

Abstract

Graphene is a two-dimensional carbon material with a honeycomb lattice and Dirac-like low-energy excitations. When Zeeman and spin-orbit interactions are neglected, its Landau levels are fourfold degenerate, explaining the 4e2/h separation between quantized Hall conductivity values seen in recent experiments. In this Letter we derive a criterion for the occurrence of interaction-driven quantum Hall effects near intermediate integer values of e2/h due to charge gaps in broken symmetry states.

Original languageEnglish
Article number256602
JournalPhysical review letters
Volume96
Issue number25
DOIs
Publication statusPublished - 2006

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Quantum hall ferromagnetism in graphene'. Together they form a unique fingerprint.

Cite this