Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Field-Induced Lifshitz Transition in the Magnetic Weyl Semimetal
  Candidate PrAlSi   Lifshitz transition (LT) refers to an abrupt change in the electronic
structure and Fermi surface, and is associated to a variety of emergent quantum
phenomena. Amongst the LTs observed in known materials, the field-induced LT
has been rare and its origin remains elusive. To understand the origin of
field-induced LT, it is important to extend the material basis beyond the usual
setting of heavy fermion metals. Here, we report on a field-induced LT in
PrAlSi, a magnetic Weyl semimetal candidate with localized 4$f$ electrons,
through a study of magnetotransport up to 55 T. The quantum oscillation
analysis reveals that across a threshold field $B^*\approx$14.5 T the
oscillation frequency ($F_1$ = 43 T) is replaced by two new frequencies ($F_2$
= 62 T and $F_3$ = 103 T). Strikingly, the LT occurs well below quantum limit,
with obvious temperature-dependent oscillation frequency and field-dependent
cyclotron mass. Our work not only enriches the rare examples of field-induced
LTs, but also paves the way for further investigation on the interplay among
topology, magnetism and electronic correlation.

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The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
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The categories of this paper are: supr-con
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess