Fock-Darwin states of dirac electrons in graphene-based artificial atoms

Hong Yi Chen, Vadim Apalkov, Tapash Chakraborty

Research output: Contribution to journalArticle

106 Citations (Scopus)

Abstract

We investigate the Fock-Darwin states of the massless chiral fermions confined in a graphitic parabolic quantum dot. In light of Klein tunneling, we analyze the condition for confinement of the Dirac fermions in a cylindrically symmetric potential. New features of the energy levels of the Dirac electrons as compared to the conventional electronic systems are discussed. We also evaluate the dipole-allowed transitions in the energy levels of the dots. We propose that in the high magnetic field limit, the band parameters can be accurately determined from the dipole-allowed transitions.

Original languageEnglish
Article number186803
JournalPhysical Review Letters
Volume98
Issue number18
DOIs
Publication statusPublished - 2007 May 1
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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