Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Electron Transport in Hybrid Ferromagnetic/Superconducting
  Nanostructures   We observe large amplitude changes in the resistance of ferromagnetic (F)
wires at the onset of superconductivity of adjacent superconductors (S). New
sharp peaks of large amplitude are found in the magnetoresistance of the
F-wires. We discuss a new mechanism for the long-range superconducting
proximity effect in F/S nanostructures based on the analysis of the topologies
of actual Fermi-surfaces in ferromagnetic metals.

31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
20
The categories of this paper are: acc-phys
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin