Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum oscillations and Dirac dispersion in the BaZnBi2 semimetal
  guaranteed by local Zn vacancy order   We have synthesized single crystals of Dirac semimetal candidates AZnBi2 with
A=Ba and Sr. In contrast to A=Sr, the Ba material displays a novel local Zn
vacancy ordering, which makes the observation of quantum oscillations in
out-of-plane magnetic fields possible. As a new Dirac semimetal candidate,
BaZnBi2 exhibits small cyclotron electron mass, high quantum mobility, and
non-trivial Berry phases. Three Dirac dispersions are observed by ARPES and
identified by first- principles band-structure calculations. Compared to
AMn(Bi/Sb)2 systems which host Mn magnetic moments, BaZnBi2 acts as
non-magnetic analogue to investigate the intrinsic properties of Dirac fermions
in this structure family.

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The categories of this paper are: funct-an
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-fin
1
The categories of this paper are: cs
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The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
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The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
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The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ
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The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
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The categories of this paper are: eess
5
The categories of this paper are: gr-qc