Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Magnetic properties of two-dimensional charged spin-1 Bose gases   Within the mean-field theory, we investigate the magnetic properties of a
charged spin-1 Bose gas in two dimension. In this system the diamagnetism
competes with paramagnetism, where Lande-factor $g$ is introduced to describe
the strength of the paramagnetic effect. The system presents a crossover from
diamagnetism to paramagnetism with the increasing of Lande-factor. The critical
value of the Lande-factor, $g_{c}$, is discussed as a function of the
temperature and magnetic field. We get the same value of $g_{c}$ both in the
low temperature and strong magnetic field limit. Our results also show that in
very weak magnetic field no condensation happens in the two dimensional charged
spin-1 Bose gas.

33
The categories of this paper are: plasm-ph
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org