Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effect of electron-phonon coupling in the ARPES spectra of the tri-layer
  cuprate Bi$_2$Sr$_2$Ca$_2$Cu$_3$O$_{10+\delta}$   Angle-resolved photoemission spectroscopy using tunable low energy photons
allows us to study the quasi-particle (QP) dispersions of the inner and outer
CuO2 planes (IP and OP) separately in the tri-layer cuprate
Bi$_2$Sr$_2$Ca$_2$Cu$_3$O$_{10+\delta}$ (Bi2223). The kink energy of the OP
band is $\sim$ 70 meV, as observed in various high-$T_c$ cuprates, while that
of the IP band is as large as 100 meV in the superconducting (SC) state. This
large kink energy is attributed to the $\sim$ 35 meV buckling mode plus the
large ($\sim$ 60 meV) SC gap of IP. The IP band also shows a weak kink feature
at 70 meV in the SC state. The latter feature can be explained either by the 70
meV half-breathing mode or by the $\sim$ 35 meV buckling-phonon mode plus the
$\sim$ 40 meV SC gap of OP if interlayer scattering of QP is involved.

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The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas