Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Plasmon and dielectric background inhomogeneity enhancement of Coulomb
  drag in graphene double-layer structures   The drag of massless fermions in graphene double-layer structures is
investigated in a wide rage of temperatures and inter-layer separations. We
show that the inhomogeneity of the dielectric background in such graphene
structures for experimentally relevant parameters results in a significant
enhancement of the drag resistivity. At intermediate temperatures the dynamical
screening via plasmon-mediated drag enhances the drag resistivity and results
in an upturn in its behavior at large inter-layer separations. In a range of
inter-layer separations, corresponding to the strong-to-weak crossover coupling
of graphene layers, we find that the drag resistivity decreases approximately
quadratically with the inter-layer spacing. This dependence weakens with a
decrease of the inter-layer spacing while for larger separations we recover the
cubic (quartic) dependence at intermediate (low) temperatures.

10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th