Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Interacting nanopatterned pins: barriers towards creating interstitial
  vortices   We show that by nano-patterning a superconductor (NbSe2 single crystal) with
an array of blind holes produces significant magnetic field sweep rate
dependent metastable magnetization response. Our results are explained on the
basis of a unique collective action of the blind holes pins which creates a
barrier against vortex redistribution inside the sample. We propose that this
barrier leads to a phase separation creating distinct population of vortices
viz., those pinned on blind holes and those confined in the interstitials
between the holes.

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The categories of this paper are: hep-th
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The categories of this paper are: nucl-th
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The categories of this paper are: nlin
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The categories of this paper are: physics
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The categories of this paper are: funct-an
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The categories of this paper are: ao-sci
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The categories of this paper are: atom-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: solv-int
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-ex
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The categories of this paper are: math-ph
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The categories of this paper are: eess
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The categories of this paper are: adap-org
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The categories of this paper are: q-fin
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The categories of this paper are: alg-geom