Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Surface-induced Magnetism Fluctuations in Single Crystal of NiBi3
  Superconductor   We report anistropy in superconducting and normal state of NiBi3 single
crystals with Tc = 4.06 K. The magnetoresistance results indicate the absence
of scattering usually associated with ferromagnetic metals, suggesting the
absence of bulk long range magnetic order below 300 K. However, the electron
spin resonance results demonstrate that ferromagnetism fluctuations exist on
the surface of the crystal below 150K.

11
The categories of this paper are: hep-lat
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The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
2
The categories of this paper are: math
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc