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https://doi.org/10.1103/PhysRevB.87.195448
DC Field | Value | |
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dc.title | Effect of charged line defects on conductivity in graphene: Numerical Kubo and analytical Boltzmann approaches | |
dc.contributor.author | Radchenko, T.M. | |
dc.contributor.author | Shylau, A.A. | |
dc.contributor.author | Zozoulenko, I.V. | |
dc.contributor.author | Ferreira, A. | |
dc.date.accessioned | 2014-10-16T09:21:47Z | |
dc.date.available | 2014-10-16T09:21:47Z | |
dc.date.issued | 2013-05-31 | |
dc.identifier.citation | Radchenko, T.M., Shylau, A.A., Zozoulenko, I.V., Ferreira, A. (2013-05-31). Effect of charged line defects on conductivity in graphene: Numerical Kubo and analytical Boltzmann approaches. Physical Review B - Condensed Matter and Materials Physics 87 (19) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevB.87.195448 | |
dc.identifier.issn | 10980121 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/96297 | |
dc.description.abstract | Charge carrier transport in single-layer graphene with one-dimensional charged defects is studied theoretically. Extended charged defects, considered an important factor for mobility degradation in chemically vapor-deposited graphene, are described by a self-consistent Thomas-Fermi potential. A numerical study of electronic transport is performed by means of a time-dependent real-space Kubo approach in honeycomb lattices containing millions of carbon atoms, capturing the linear response of realistic size systems in the highly disordered regime. Our numerical calculations are complemented with a kinetic transport theory describing charge transport in the weak scattering limit. The semiclassical transport lifetimes are obtained by computing scattered amplitudes within the second Born approximation. The transport electron-hole asymmetry found in the semiclassical approach is consistent with the Kubo calculations. In the strong scattering regime, the conductivity is found to be a sublinear function of electronic density and weakly dependent on the Thomas-Fermi screening wavelength. We attribute this atypical behavior to the extended nature of one-dimensional charged defects. Our results are consistent with recent experimental reports. © 2013 American Physical Society. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1103/PhysRevB.87.195448 | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | PHYSICS | |
dc.description.doi | 10.1103/PhysRevB.87.195448 | |
dc.description.sourcetitle | Physical Review B - Condensed Matter and Materials Physics | |
dc.description.volume | 87 | |
dc.description.issue | 19 | |
dc.description.page | - | |
dc.description.coden | PRBMD | |
dc.identifier.isiut | 000319802900006 | |
Appears in Collections: | Staff Publications |
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