Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Effect of next-nearest-neighbor hopping on the electronic properties of graphene
AU - Suprunenko, Yevhen F.
AU - Gorbar, E. V.
AU - Loktev, V. M.
AU - Sharapov, S. G.
PY - 2008/10
Y1 - 2008/10
N2 - In the tight-binding approximation, we take into account the next-nearest-neighbor hopping in graphene that leads to nonrelativistic-like corrections in its low energy spectrum. The electronic density of states in a magnetic field is found and the fan diagram is plotted, which interpolates between those for the relativistic and nonrelativistic limiting cases. It is shown that the Berry phase for the system under consideration coincides exactly with its value for the relativistic system.
AB - In the tight-binding approximation, we take into account the next-nearest-neighbor hopping in graphene that leads to nonrelativistic-like corrections in its low energy spectrum. The electronic density of states in a magnetic field is found and the fan diagram is plotted, which interpolates between those for the relativistic and nonrelativistic limiting cases. It is shown that the Berry phase for the system under consideration coincides exactly with its value for the relativistic system.
U2 - 10.1063/1.2981394
DO - 10.1063/1.2981394
M3 - Journal article
VL - 34
SP - 812
EP - 817
JO - Low Temperature Physics
JF - Low Temperature Physics
SN - 1063-777X
IS - 10
ER -