Transport anomaly at the ordering transition for adatoms on graphene

Details Transport anomaly at the ordering transition for adatoms on graphene Transport anomaly at the ordering transition for adatoms on graphene

2011-02-05

arxiv.org/abs/1102.1084v1

Phys. Rev. B 83, 201401(R) (2011)

Physics

Condensed Matter

Disordered Systems and Neural Networks

4 pages, 1 figure

Scientific paper

10.1103/PhysRevB.83.201401

We analyze a manifestation of the partial ordering transition of adatoms on graphene in resistivity measurements. We find that Kekule mosaic ordering of adatoms increases sheet resistance of graphene, due to a gap opening in its spectrum, and that critical fluctuations of the order parameter lead to a non-monotonic temperature dependence of resistivity, with a cusp-like minimum at T=T_c.

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