Electronic properties of a graphene antidot in magnetic fields.

P. S. Park, S. C. Kim, Sung Ryul Yang

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

We report on several unusual properties of a graphene antidot created by a piecewise constant potential in a magnetic field. We find that the total probability of finding the electron in the barrier can be nearly one while it is almost zero outside the barrier. In addition, for each electron state of a graphene antidot there is a dot state with exactly the same wavefunction but with a different energy. This symmetry is a consequence of Klein tunneling of Dirac electrons. Moreover, in zigzag nanoribbons we find strong coupling between some antidot states and zigzag edge states. Experimental tests of these effects are proposed.

Original languageEnglish
JournalJournal of physics. Condensed matter : an Institute of Physics journal
Volume22
Issue number37
DOIs
Publication statusPublished - 2010 Sep 22

ASJC Scopus subject areas

  • Medicine(all)

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