Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Magnetization distribution and domain wall dynamics in nanotube with
  surface anisotropy   The period of magnetization oscillations that occur near the surface of a
nanotube or nanowire under the influence of surface magnetic anisotropy is
determined by means of numerical simulation as a function of nanowire geometry
and material parameters. The hopping mode is observed for stationary movement
of a head-to-head domain wall along nanowire axis in applied magnetic field.
The average speed of the domain wall in the hopping mode is found to be several
times less than the stationary velocity of the wall in the absence of surface
anisotropy.

17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th