Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Pronounced 2/3 magnetization plateau in a frustrated $S$ = 1 isolated
  spin-triangle compound: Interplay between Heisenberg and biquadratic exchange
  interactions   We report the synthesis and characterization of a new quantum magnet
[2-[Bis(2-hydroxybenzyl)aminomethyl]pyridine]Ni(II)-trimer (BHAP-Ni3) in
single-crystalline form. Our combined experimental and theoretical
investigations reveal an exotic spin state that stabilizes a robust 2/3
magnetization plateau between 7 and 20 T in an external magnetic field.
AC-susceptibility measurements show the absence of any magnetic order/glassy
state down to 60 mK. The magnetic ground state is disordered and specific-heat
measurements reveal the gapped nature of the spin excitations. Most
interestingly, our theoretical modeling suggests that the 2/3 magnetization
plateau emerges due to the interplay between antiferromagnetic Heisenberg and
biquadratic exchange interactions within nearly isolated spin $S$ = 1
triangles.

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The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
7
The categories of this paper are: hep-th
20
The categories of this paper are: acc-phys