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arXiv · 1810.08506

Electrical Contact Resistance in Graphite-Graphene contacts from ab initio methods

Ferran Jovell·Xavier Cartoixà
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Abstract

We study the ballistic transmission and the contact resistance ($R_c$) of a graphite-graphene contact in a top contact geometry from first principles. We find that the calculated $R_c$'s depend on the amount of graphene-graphite overlap, but quickly saturate for transfer lengths of the order of 20 {\AA}. For contacts overlapping more than this transfer length, the $R_c$ can be lower than the 100 {\Omega}$\cdot${\mu}m mark. On the other hand, edge graphite-graphene contacts are expected to have very low contact resistance.

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Ferran Jovell, Xavier Cartoixà. 2018-10-19. Electrical Contact Resistance in Graphite-Graphene contacts from ab initio methods. https://doi.org/10.1088/1361-648x%2Faacd83

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