Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hybrid symmetry epitaxy of superconducting Fe(Te,Se) film on a
  topological insulator   It is challenging to grow an epitaxial four-fold compound superconductor (SC)
on six-fold topological insulator (TI) platform due to stringent
lattice-matching requirement. Here, we demonstrate that Fe(Te,Se) can grow
epitaxially on a TI (Bi2Te3) layer due to accidental, uniaxial lattice match,
which is dubbed as "hybrid symmetry epitaxy". This new growth mode is critical
to stabilizing robust superconductivity with TC as high as 13 K. Furthermore,
the superconductivity in this FeTe1-xSex/Bi2Te3 system survives in Te-rich
phase with Se content as low as x = 0.03 but vanishes at Se content above x =
0.56, exhibiting a phase diagram that is quite different from that of the
conventional Fe(Te,Se) systems. This unique heterostructure platform that can
be formed in both TI-on-SC and SC-on-TI sequences opens a route to
unprecedented topological heterostructures.

10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga