Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Supercurrent on a vortex core in 2H-NbSe$_2$: current driven scanning
  tunneling spectroscopy   We report current driven scanning tunneling spectroscopy (CDSTS) measurements
at very low temperatures on vortices in 2H-NbSe2. We find that a current
produces an increase of the density of states at the Fermi level in between
vortices, and a reduction of the zero bias peak at the vortex center. This
occurs well below the de-pairing current. We conclude that a supercurrent
affects the low energy part of the superconducting gap structure of 2H-NbSe2.

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The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
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The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
2
The categories of this paper are: math