29 citations · 128 across the 11 of their papers we have counts for
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cond-mat.mes-hall2010★ 17 cited
Effect of topology on the critical charge in graphene
Baishali Chakraborty, Kumar S. Gupta, Siddhartha Sen
We show that the critical charge for the Dirac excitations in gapless graphene depends on the spatial topology of the sample. In particular, for graphene cones, the effective value…
cond-mat.mes-hall2008★ 29 cited
Bound States in Graphene
Kumar S. Gupta, Siddhartha Sen
We present a quantum analysis of the massless excitations in graphene with a charge impurity. When the effective charge exceeds a certain critical value, the spectrum is quantized…