Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: New Vortex with Zero Fluxoid Quantum in a Superconductor Anomalous Hall
  Effect in High T_c and Low T_c Superconductors   It is shown that there are three kinds of vortices in a superconductor; a
vortex with the fluxoid quantum 1 (VF), a new vortex with 0 (VZF), and a vortex
with -1 (VAF), respectively. The Hall field via three vortices is studied and
found to change its sign, depending of the relative strength of contributions
via VF and VAF, similar to that of a system with two kinds of carriers. VZF is
suggested to act as a domain wall between VF and VAF regions, accounting for
the flux and antiflux regions observed in Nb films.

16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
3
The categories of this paper are: physics
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th