Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Theory of anomalous Hall effect for type-II high-Tc and conventional
  superconductors   The anomalous Hall effect for type-II superconductors is investigated by
random walk theorem. It is shown that the origin of Hall anomaly is induced by
the thermally activated vortex bundle flow (TAVBF) over the
directional-dependent energy barrier formed by the Magus force, random
collective pinning force, and strong pinning force inside the vortex bundles.
The directional-dependent potential barrier of the vortex bundles renormalizes
the Hall and longitudinal resistivities strongly. Under the framework of
present theory, it is also shown that the Hall anomaly is universal for type-II
superconductors, either high- or conventional as well as bulk materials or thin
films. The conditions for Hall anomaly and reentry phenomenon are derived, the
Hall and longitudinal resistivities as well as Hall angle for type-II
superconducting films and bulk materials versus temperature and applied
magnetic field are calculated. All the results are in agreement with the
experiments.

33
The categories of this paper are: plasm-ph
3
The categories of this paper are: physics
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an