Flake Electrical Conductivity of Few-Layer Graphene
The Kubo formula for the electrical conductivity of per stratum of few-layer graphene, up to five, is analytically calculated in both simple and Bernal structures within the tight-binding Hamiltonian model and Green's function technique, compared with the single-layer one. The results show that...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/581478 |
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| Summary: | The Kubo formula for the electrical conductivity of per stratum of few-layer graphene,
up to five, is analytically calculated in both simple and Bernal structures within the
tight-binding Hamiltonian model and Green's function technique, compared with the single-layer one. The results show that, by increasing the layers of the graphene as well
as the interlayer hopping of the nonhybridized pz orbitals, this conductivity decreases.
Although the change in its magnitude varies less as the layer number increases to beyond two,distinguishably, at low temperatures, it exhibits a small deviation from linear
behavior. Moreover, the simple bilayer graphene represents more conductivity with respect to
the Bernal case. |
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| ISSN: | 2356-6140 1537-744X |