Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Inertial spin alignment in a circular magnetic nanotube   In Co-nanotubes with a curling magnetization, the orbital motion of the
conduction electrons interacts with their spin. We predict that the (absolute)
value of the magnetic energy of the spin is strongly reduced. The new
precession axis for the spin is almost parallel to the axis of the nanotube and
precesses with the angular velocity of the electron. The physics of the
ferromagnet is considerably modified.

8
The categories of this paper are: hep-ex
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
2
The categories of this paper are: math
7
The categories of this paper are: hep-th
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat