Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Theoretical investigation of the four-layered self-doped high-T$_c$
  superconductors: evidence of pair tunneling effect   Based on a four-layered self-doped $t-J$ type model and the slave-boson
mean-field approach, we study theoretically the superconductivity in the
electron-doped and hole-doped layers. The neighbor layers are coupled through
both the single electron interlayer hopping and pair tunneling effect. The
superconducting gap magnitude for the electron-doped band is nearly twice of
that of the hole-doped one, which contrasts to our previous understanding of
the electron-hole asymmetry in high-T$_c$ superconductors but consistent with
recent angle-resolved-photoemission-spectroscopy experiments in four-layered
materials Ba$_2$Ca$_3$Cu$_4$O$_8$F$_2$. Our results propose that the pair
tunneling effect is important to examine the multi-layered superconducting
materials.

28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol