Spectral approach to transport in the two-dimensional honeycomb lattice with substitutional disorder
dc.contributor.author | Kostadinova, Eva Georgieva, 1992- | |
dc.contributor.author | Liaw, C. D. | |
dc.contributor.author | Hering, Amanda S. | |
dc.contributor.author | Cameron, Adam | |
dc.contributor.author | Guyton, Forrest. | |
dc.contributor.author | Matthews, Lorin Swint. | |
dc.contributor.author | Hyde, Truell Wayne. | |
dc.date.accessioned | 2019-07-16T14:52:18Z | |
dc.date.available | 2019-07-16T14:52:18Z | |
dc.date.issued | 2019-01 | |
dc.description.abstract | The transport properties of a disordered two-dimensional (2D) honeycomb lattice are examined numerically using the spectral approach to the 2D percolation problem, characterized by an Anderson-type Hamiltonian. In our model, disorder is represented by two parameters: a distribution of random on-site energies ε_i (positional disorder) and a concentration of doping energies p (substitutional disorder). The results indicate the existence of extended energy states for nonzero disorder and the emergence of a transition towards localized behavior for critical doping concentration n_D > 0.3%, in agreement with the experimentally observed metal-to-insulator transition in a graphene sheet doped with hydrogen | en_US |
dc.description.keywords | spectral method | en_US |
dc.description.keywords | transport | en_US |
dc.description.keywords | 2D material | en_US |
dc.identifier.citation | Physical Review B, 99, (2), 024115, January, 2019 | en_US |
dc.identifier.doi | 10.1103/PhysRevB.99.024115 | |
dc.identifier.uri | https://hdl.handle.net/2104/10641 | |
dc.language.iso | en | en |
dc.publisher | Physical Review B | en_US |
dc.title | Spectral approach to transport in the two-dimensional honeycomb lattice with substitutional disorder | en_US |
dc.type | Article | en |
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