Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Calculation of the specific heat of optimally K-doped BaFe$_2$As$_2$   The calculated specific heat of optimally K-doped BaFe$_2$As$_2$ in density
functional theory is about five times smaller than that found in the
experiment. We report that by adjusting the potential on the iron atom to be
slightly more repulsive for electrons improves the calculated heat capacity as
well as the structural, magnetic, and electronic properties of
Ba$_{0.6}$K$_{0.4}$Fe$_2$As$_2$. Applying the same correction to the
antiferromagnetic state, we find that the electron-phonon coupling is strongly
enhanced.

29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
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The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph