Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Role of electron-phonon interaction in a magnetically driven mechanism
  for superconductivity   We use the renormalization group method to examine the effect of phonon
mediated interaction on d-wave superconductivity, as driven by spin
fluctuations in a quasi-one-dimensional electron system. The influence of a
tight-binding electron-phonon interaction on the spin-density-wave and d-wave
superconducting instability lines is calculated for arbitrary temperature,
phonon frequency and antinesting of the Fermi surface.The domain of
electron-phonon coupling strength where spin-density-wave order becomes
unstable against the formation of a bond-order-wave or Peierls state is
determined at weak antinesting. We show the existence of a positive isotope
effect for spin-density-wave and d-wave superconducting critical temperatures
which scales with the antinesting distance from quantum critical point where
the two instabilities merge. We single out a low phonon frequency zone where
the bond-oder-wave ordering gives rise to triplet f-wave superconductivity
under nesting alteration, with both orderings displaying a negative isotope
effect. We also study the electron-phonon strengthening of spin fluctuations at
the origin of extended quantum criticality in the metallic phase above
superconductivity. The impact of our results on quasi-one-dimensional organic
conductors like the Bechgaard salts where a Peierls distortion is absent and
superconductivity emerges near a spin-density-wave state under pressure is
emphasized.

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The categories of this paper are: q-bio
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The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
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The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
2
The categories of this paper are: math
19
The categories of this paper are: eess
3
The categories of this paper are: physics
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The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
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The categories of this paper are: econ
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The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph