• 文献标题:   Fock-Darwin states of dirac electrons in graphene-based artificial atoms
  • 文献类型:   Article
  • 作  者:   CHEN HY, APALKOV V, CHAKRABORTY T
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW LETTERS
  • ISSN:   0031-9007 EI 1079-7114
  • 通讯作者地址:   Univ Manitoba
  • 被引频次:   97
  • DOI:   10.1103/PhysRevLett.98.186803
  • 出版年:   2007

▎ 摘  要

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.