Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A new topological insulator - \beta-InTe strained in the layer plane   We have investigated the band structure of the bulk crystal and the (001)
surface of the \beta-InTe layered crystal subjected to biaxial stretching in
the layer plane. The calculation has been carried out using the full-potential
linearized augmented plane wave method (FP LAPW) implemented in WIEN2k. It has
been shown that at the strain \Deltaa/a=0.06, where a is the lattice parameter
in the layer plane, the band gap in the electronic spectrum collapses. With
further strain increase a band inversion occurs. The inclusion of the
spin-orbit interaction reopens the gap in the electronic spectrum of a bulk
crystal, and our calculations show that the spectrum of the surface states has
the form of a Dirac cone, typical for topological insulators.

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The categories of this paper are: quant-ph
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The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
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The categories of this paper are: math-ph
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The categories of this paper are: eess
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The categories of this paper are: funct-an
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The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc