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Friedel oscillations, impurity scattering and temperature dependence of resistivity in graphene | | Vadim V. Cheianov
; Vladimir I. Fal’ko
; | | Date: |
10 Aug 2006 | | Subject: | Mesoscopic Systems and Quantum Hall Effect | | Abstract: | We show that Friedel oscillations (FO) in grapehene are strongly affected by the chirality of electrons in this material. In particular, the FO of the charge density around an impurity show a faster, $1/r^3$, decay than in conventional 2D electron systems and do not contribute to a linear temperature-dependent correction to the resistivity. In contrast, the FO of the exchange field which surrounds atomically sharp defects breaking the hexagonal symmetry of the honeycomb lattice lead to a negative linear T-dependence of the resistivity. | | Source: | arXiv, cond-mat/0608228 | | Other source: | [GID 449716] pmid17155824 | | Services: | Forum | Review | PDF | Favorites | |
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