Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Anomalous scaling of the specific-heat jump $\Delta C$ vs. $T_c$ in the
  Fe-based superconductors: the $\pm$S-wave pairing state model   The strong power law behavior of the specific heat jump $\Delta C$ vs. $T_c$
($\Delta C/T_c \sim T_c ^{\alpha}, \alpha\approx 2$), first observed by Bud'ko,
Ni, and Canfield (BNC)[1], has been confirmed with several families of the
Fe-based superconducting compounds with a series of doping. We show here that
this anomalous non-BCS behavior is an intrinsic property of the multiband
superconducting state paired by a dominant interband interaction ($V_{inter} >
V_{intra}$) reflecting the relation $\frac{\Delta_h}{\Delta_e} \sim
\sqrt{\frac{N_e}{N_h}}$ near $T_c$, as in the $\pm$S-wave pairing state. Then
this $\Delta C$ vs. $T_c$ relation can continuously change from the perfect BNC
scaling to a considerable deviation at lower $T_c$ region with a moderate
variation of the impurity scattering rate.

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The categories of this paper are: dg-ga
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys