Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hexagonal type Ising nanowire with spin-1 core and spin-2 shell
  structure   }Thermodynamic properties and phase diagrams of a mixed spin-(1, 2) Ising
ferrimagnetic system with single ion anisotropy on hexagonal nanowire are
studied by using effective-field theory with correlations. The susceptibility,
internal energy and specific heat of the system are numerically examined and
some interesting phenomena in these quantities are found. The effect of the
Hamiltonian parameters on phase diagrams are examined in detail. Besides
second-order phase transition, lines of first-order transition and tricritical
points are found. In particular, we found that for some negative values of
single-ion anisotropies, there exist first-order phase transitions.

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The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
3
The categories of this paper are: physics
1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-th
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The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
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The categories of this paper are: solv-int