Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spectroscopic signatures of different symmetries of the superconducting
  order parameter in metal-decorated graphene   Motivated by the recent experiments indicating superconductivity in
metal-decorated graphene sheets, we investigate their quasi-particle structure
within the framework of an effective tight-binding Hamiltonian augmented by
appropriate BCS-like pairing terms for p-type order parameter. The normal state
band structure of graphene is modified not only through interaction with
adsorbed metal atoms, but also due to the folding of bands at Brillouin zone
boundaries resulting from a $\sqrt{3}\times\sqrt{3}R30^{\circ}$ reconstruction.
Several different types of pairing symmetries are analyzed utilizing
Nambu-Gorkov Green's function techniques to show that $p+ip$-symmetric
nearest-neighbor pairing yields the most enhanced superconducting gap. The
character of the order parameter depends on the nature of the atomic orbitals
involved in the pairing process and exhibits interesting angular and radial
asymmetries. Finally, we suggest a method to distinguish between singlet and
triplet type superconductivity in the presence of magnetic substitutional
impurities using scanning tunneling spectroscopy.

30
The categories of this paper are: q-alg
2
The categories of this paper are: math
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
9
The categories of this paper are: nlin