24 citations · 105 across the 9 of their papers we have counts for
9 papers
Topological gap states of semiconducting armchair graphene ribbons
Y. H. Jeong, S. C. Kim, S. -R. Eric Yang
In semiconducting armchair graphene ribbons a chiral lattice deformation can induce pairs of topological gap states with opposite energies. Near the critical value of the deformati…
Impurity cyclotron resonance of anomalous Dirac electrons in graphene
S. C. Kim, S. -R. Eric Yang, A. H. MacDonald
We have investigated a new feature of impurity cyclotron resonances common to various localized potentials of graphene. A localized potential can interact with a magnetic field in…
Coulomb impurity problem of graphene in magnetic fields
S. C. Kim, S. -R. Eric Yang
Analytical solutions of the Coulomb impurity problem of graphene in the absence of a magnetic field show that when the dimensionless strength of the Coulomb potential reaches a…
Resonant, non-resonant, and anomalous states of Dirac electrons in a parabolic well in the presence of magnetic fields
S. C. Kim, J. W. Lee, S. -R. Eric Yang
We report on several new basic properties of a parabolic dot in the presence of a magnetic field. The ratio between the potential strength and the Landau level (LL) energy spacing…
Comment on "Fock-Darwin States of Dirac Electrons in Graphene-Based Artificial Atoms"
P. S. Park, S. C. Kim, S. -R. Eric Yang
Chen, Apalkov, and Chakraborty (Phys. Rev. Lett. 98, 186803 (2007)) have computed Fock-Darwin levels of a graphene dot by including only basis states with energies larger than or e…
Scaling properties of induced density of chiral and non-chiral Dirac fermions in magnetic fields
P. S. Park, S. C. Kim, S. -R. Eric Yang
We find that a repulsive potential of graphene in the presence of a magnetic field has bound states that are peaked inside the barrier with tails extending over \ell(N + 1), where…