Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Prediction of a Weyl Semimetal in Hg$_{1-x-y}$Cd$_x$Mn$_y$Te   We study strained Hg$_{1-x-y}$Cd$_x$Mn$_y$Te in a magnetic field using a
$\bm{k}\cdot\bm{p}$ model and predict that the system is a Weyl semimetal with
two nodes in an experimentally reasonable region of the phase diagram. We also
predict two signatures of the Weyl semimetal phase which arise from tunability
of the Weyl node splitting. First, we find that the Hall conductivity is
proportional to the average Mn ion spin and thus is strongly temperature
dependent. Second, we find an unusual magnetic field angle dependence of the
Hall conductivity; in particular, we predict a peak in $\sigma_{xy}$ as a
function of field angle in the $xz$-plane and a finite $\sigma_{yz}$ as the
$x$-component of the field goes to 0.

25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
7
The categories of this paper are: hep-th