Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Phase Diagram of Pressure-induced Superconductivity and its Relation to
  Hall Coefficient in Bi2Te3 Single Crystal   Pressure-induced superconductivity and its relation to corresponding Hall
coefficient (RH) have been reported for Bi2Te3, one of known topological
insulators. A full phase diagram is presented which shows a complex dependence
of the superconducting transition temperature as a function of pressure over an
extensive range. High-pressure RH measurements reveal a close relation of these
complex behaviors, particularly, a dramatic change of dRH/dP before structural
phase transition and a pressure-induced crossover on RH in the high pressure
phase were observed.

3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
2
The categories of this paper are: math