Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Critical Behavior of Layered Superconducting Films in Parallel Magnetic
  Field   The equilibrium magnetization for layered superconducting films that
experience a nonzero component, $H_{\parallel}$, of magnetic field applied
parallel to the layers is computed at temperatures and at perpendicular field
components in the vicinity of the decoupling transition. A fermion analogy is
exploited for this purpose, whereby it is found that the parallel magnetization
shows an anomalous $H_{\parallel}^{-1}$ tail at high fields due to entropic
fluctuations of the (parallel) lattice of Josephson vortices. A collective
pinning effect is also identified for $c$-axis transport limited by a single
planar defect oriented parallel to both $c$ and to the applied magnetic field.

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The categories of this paper are: hep-th
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an