Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multicomponent Quantum Hall Ferromagnetism and Landau Level Crossing in
  Rhombohedral Trilayer Graphene   Using transport measurements, we investigate multicomponent quantum Hall (QH)
ferromagnetism in dual-gated rhombohedral trilayer graphene (r-TLG), in which
the real spin, orbital pseudospin and layer pseudospins of the lowest Landau
level form spontaneous ordering. We observe intermediate quantum Hall plateaus,
indicating a complete lifting of the degeneracy of the zeroth Landau level (LL)
in the hole-doped regime. In charge neutral r-TLG, the orbital degeneracy is
broken first, and the layer degeneracy is broken last and only the in presence
of an interlayer potential U. In the phase space of U and filling factor, we
observe an intriguing hexagon pattern, which is accounted for by a model based
on crossings between symmetry-broken LLs.

2
The categories of this paper are: math
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
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The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex