Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Finite size effects in the magnetization of periodic mesoscopic systems   We calculate the orbital magnetization of a confined 2DEG as a function of
the number of electrons in the system. Size effects are investigated by
systematically increasing the area of the confining region. The results for the
finite system are compared to an infinite one, where the magnetization is
calculated in the thermodynamic limit. In all calculations the
electron-electron interaction is included in the Hartree approximation.

19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
13
The categories of this paper are: quant-ph
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat