Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Holographic paramagnetic-ferromagnetic phase transition with
  Power-Maxwell electrodynamics   We explore the effects of Power-Maxwell nonlinear electrodynamics on the
properties of holographic s-wave paramagnetic-ferromagnetic phase transition in
the background of Schwarzchild Anti-de Sitter (AdS) black hole. For this
purpose, we introduce a massive 2-form coupled to the Power-Maxwell field. We
perform the numerical shooting method in the probe limit by assuming the
Power-Maxwell and the 2-form fields do not back react on the background
geometry. We observe that increasing the strength of the power parameter causes
the formation of magnetic moment in the black hole background harder and
critical temperature lower. In the absence of external magnetic field and at
the low temperatures, the spontaneous magnetization and the ferromagnetic phase
transition happen. In this case, the critical exponent for magnetic moment is
always 1/2 which is in agreement with the result from the mean field theory. In
the presence of external magnetic field, the magnetic susceptibility satisfies
the Cure-Weiss law.

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The categories of this paper are: acc-phys
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The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
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The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph
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The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
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The categories of this paper are: q-fin
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The categories of this paper are: nlin
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The categories of this paper are: nucl-ex
33
The categories of this paper are: plasm-ph