Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Disorder-induced suppression of superconductivity in the
  Si(111)-($\sqrt{7}\times\sqrt{3}$)-In surface: Scanning tunneling microscopy
  study   The critical effect of disorder on the two-dimensional (2D) surface
superconductor Si(111)-($\sqrt{7}\times\sqrt{3}$)-In is clarified by comparing
two regions with different degrees of disorder. Low-temperature scanning
tunneling microscopy measurements reveal that superconductivity is retained in
the less disordered region, judging from the characteristic differential
conductance ($dI/dV$) spectra and from the formation of vortices under magnetic
fields. In striking contrast, the absence of those features in the highly
disordered region shows that superconductivity is strongly suppressed there.
Analysis of observed zero-bias anomalies in $dI/dV$ spectra allows us to
estimate the reduction in the transition temperature $T_{\rm c}$, which
explains the fate of superconductivity in each region.

15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an