Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Prediction of topological insulating behavior in Hg2CuTi-type Heusler
  compounds from first principles   The topological band structures of the X2YZ Heusler compounds with the
Hg2CuTi structure are investigated by using first-principles calculations
within density functional theory. Our results clearly show that a large number
of the Hg2CuTi type Heusler compounds naturally exhibit distinct band-inversion
feature, which is mainly controlled by the Y-Z zinc blende sublattice. Similar
to the half-Heusler family, the topological band order in Hg2CuTi type Heusler
compounds is sensitive to the variation of lattice constant, and most of them
possess a negative formation energy, which makes them more suitable in material
growth and could easily achieve the topological insulating behavior by alloying
or proper strain.

22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
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The categories of this paper are: funct-an
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The categories of this paper are: eess
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph