Magnetic field screening and mirroring in graphene

Mikito Koshino, Yasunori Arimura, Tsuneya Ando

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

The orbital magnetism in spatially varying magnetic fields is studied in monolayer graphene within the effective-mass approximation. We find that, unlike the conventional two-dimensional electron system, graphene with a small Fermi wave number kF works as a magnetic shield where the field produced by a magnetic object placed above graphene is always screened by a constant factor on the other side of graphene. The object is repelled by a diamagnetic force from the graphene, as if there exists its mirror image with a reduced amplitude on the other side of graphene. The magnitude of the force is much greater than that of the conventional two-dimensional system. The effect disappears with the increase of kF.

Original languageEnglish
Article number177203
JournalPhysical Review Letters
Volume102
Issue number17
DOIs
Publication statusPublished - 2009 Apr 28

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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