Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tuning from failed superconductor to failed insulator with magnetic
  field   Do charge modulations compete with electron pairing in high-temperature
copper-oxide superconductors? We investigated this question by suppressing
superconductivity in a stripe-ordered cuprate compound at low temperature with
high magnetic fields. With increasing field, loss of three-dimensional
superconducting order is followed by reentrant two-dimensional
superconductivity and then an ultra-quantum metal phase. Circumstantial
evidence suggests that the latter state is bosonic and associated with the
charge stripes. These results provide experimental support to the theoretical
perspective that local segregation of doped holes and antiferromagnetic spin
correlations underlies the electron-pairing mechanism in cuprates.

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The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom