Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ferromagnetism and Curie temperature of Vanadium-doped Nitrides   Electronic structures, exchange interaction mechanism between magnetic ions
and Curie temperature of Vanadium - doped Nitrides (AlN, GaN, and InN) are
studied within KKR-LSDA-CPA. It is found that the ferromagnetic super-exchange
interaction mechanism is dominant at low concentrations of Vanadium, but the
anti-ferromagnetic super-exchange interaction appears and reduces the
stabilization of ferromagnetism at sufficiently high concentrations (x > 0.10),
especially for Vanadium-doped AlN and Vanadium- doped GaN. The estimation of
the Curie temperature within the mean field approximation shows the Curie
temperature of Vanadium-doped Nitrides exceeding the room temperature with a
few constituents of Vanadium.

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The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
3
The categories of this paper are: physics
25
The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con