Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: History effect in inhomogeneous superconductors   A model was proposed to account for a new kind of history effect in the
transport measurement of a sample with inhomogeneous flux pinning coupled with
flux creep. The inhomogeneity of flux pinning was described in terms of
alternating weak pinning (lower jc) and strong pinning region (higher jc). The
flux creep was characterized by logarithmic barrier. Based on this model, we
numerically observed the same clockwise V-I loops as reported in references.
Moreover, we predicted behaviors of the V-I loop at different sweeping rates of
applied current dI/dt or magnetic fields Ba, etc. Electric transport
measurement was performed in Ag-sheathed Bi2-xPbxSr2Ca2Cu3Oy tapes immersed in
liquid nitrogen with and without magnetic fields. V-I loop at certain dI/dt and
Ba was observed. It is found that the area of the loop is more sensitive to
dI/dt than to Ba, which is in agreement well with our numerical results.

32
The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn