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arXiv · 1102.1084

Transport anomaly at the ordering transition for adatoms on graphene

Sergey Kopylov·Vadim Cheianov·Boris L. Altshuler·Vladimir I. Fal'ko
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Abstract

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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Sergey Kopylov, Vadim Cheianov, Boris L. Altshuler, Vladimir I. Fal'ko. 2011-02-05. Transport anomaly at the ordering transition for adatoms on graphene. https://doi.org/10.1103/physrevb.83.201401

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