Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: High mobility in a van der Waals layered antiferromagnetic metal   Magnetic van der Waals (vdW) materials have been heavily pursued for
fundamental physics as well as for device design. Despite the rapid advances,
so far magnetic vdW materials are mainly insulating or semiconducting, and none
of them possesses a high electronic mobility - a property that is rare in
layered vdW materials in general. The realization of a magnetic high-mobility
vdW material would open the possibility for novel magnetic twistronic or
spintronic devices. Here we report very high carrier mobility in the layered
vdW antiferromagnet GdTe3. The electron mobility is beyond 60,000 cm2 V-1 s-1,
which is the highest among all known layered magnetic materials, to the best of
our knowledge. Among all known vdW materials, the mobility of bulk GdTe3 is
comparable to that of black phosphorus, and is only surpassed by graphite. By
mechanical exfoliation, we further demonstrate that GdTe3 can be exfoliated to
ultrathin flakes of three monolayers, and that the magnetic order and
relatively high mobility is retained in approximately 20-nm-thin flakes.

2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph