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