Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dual topological nodal line and nonsymmorphic Dirac semimetal in three
  dimensions   Previously known three-dimensional Dirac semimetals (DSs) occur in two types
-- topological DSs and nonsymmorphic DSs. Here we present a novel
three-dimensional DS that exhibits both features of the topological and
nonsymmorphic DSs. We introduce a minimal tight-binding model for the space
group 100 that describes a layered crystal made of two-dimensional planes in
the $p4g$ wallpaper group. Using this model, we demonstrate that double
glide-mirrors allow a noncentrosymmetric three-dimensional DS that hosts both
symmetry-enforced Dirac points at time-reversal invariant momenta and
twofold-degenerate Weyl nodal lines on a glide-mirror-invariant plane in
momentum space. The proposed DS allows for rich topological physics manifested
in both topological surface states and topological phase diagrams, which we
discuss in detail. We also perform first-principles calculations to predict
that the proposed DS is realized in a set of existing materials BaLa$X$B$Y_5$,
where $X$ = Cu or Au, and $Y$ = O, S, or Se.

27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
1
The categories of this paper are: cs
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys