Fock-Darwin states of dirac electrons in graphene-based artificial atoms.
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.
Chen
Hong-Yi
HY
Department of Physics and Astronomy, University of Manitoba, Winnipeg, MB R3T 2N2, Canada.
Apalkov
Vadim
V
Chakraborty
Tapash
T