Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Correlation between non-Fermi-liquid behavior and superconductivity in
  (Ca, La)(Fe,Co)As2 iron arsenides: A high-pressure study   Non-Fermi-liquid (NFL) phenomena associated with correlation effects have
been widely observed in the phase diagrams of unconventional superconducting
families. Exploration of the correlation between the normal state NFL,
regardless of its microscopic origins, and the superconductivity has been
argued as a key to unveiling the mystery of the high-Tc pairing mechanism. Here
we systematically investigate the pressure-dependent in-plane resistivity and
Hall coefficient (RH ) of a high-quality 112-type Fe-based superconductor
Ca1-xLaxFe1-yCoyAs2 (x = 0.2,y = 0.02). With increasing pressure, the
normal-state resistivity of the studied sample exhibits a pronounced crossover
from non-Fermi-liquid to Fermi-liquid behaviors. Accompanied with this
crossover, Tc is gradually suppressed. In parallel, the extremum in the Hall
coefficient RH (T ) curve, possibly due to anisotropic scattering induced by
spin fluctuations, is also gradually suppressed. The symbiosis of NFL and
superconductivity implies that these two phenomena are intimately related.
Further study on the pressure-dependent upper critical field reveals that the
two-band effects are also gradually weakened with increasing pressure and
reduced to the one-band Werthamer-Helfand-Hohenberg limit in the low-Tc regime.
Overall, our paper supports the picture that NFL, multigap, and extreme RH (T )
are all of the same magnetic origin, i.e., the spin fluctuations in the 112
iron arsenide superconductors.

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The categories of this paper are: hep-ph
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
19
The categories of this paper are: eess
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th