Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tuning the nontrivial topological properties of the Weyl semimetal
  CeAlSi   In the ferromagnetic Weyl semimetal CeAlSi both space-inversion and
time-reversal symmetries are broken. We use external pressure as an effective
tuning parameter and relate three observations to the presence of a nontrivial
topology in its ferromagnetic regime: an exceptional temperature response of
the quantum oscillations amplitude, the presence of an anomalous Hall effect
(AHE), and the existence of an unusual loop Hall effect (LHE). We find a
suppression of the AHE and the LHE with increasing pressure, while the Curie
temperature is enhanced. The magnetic structure and the electronic bands
exhibit only a negligible pressure effect suggesting the importance of the
domain wall landscape for the topological behavior in CeAlSi.

14
The categories of this paper are: math-ph
9
The categories of this paper are: nlin
1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics