Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Steplike metamagnetic transitions in a honeycomb lattice antiferromagnet
  Tb$_2$Ir$_3$Ga$_9$   Single crystals of a honeycomb lattice antiferromagnet, Tb$_2$Ir$_3$Ga$_9$
were synthesized, and the physical properties have been studied. From
magnetometry, a long-range antiferromagnetic ordering at $\approx$12.5 K with
highly anisotropic magnetic behavior was found. Neutron powder diffraction
confirms that the Tb spins lie along the $\va $-axis, parallel to the shortest
Tb-Tb contact. Two field-induced spin-flip transitions are observed when the
field is applied parallel to this axis, separated by a plateau corresponding
roughly to M$\approx$M$_{\rm{s}}$/2. Transport measurements show the
resistivity to be metallic with a discontinuity at the onset of N\'eel order.
Heat capacity shows a $\lambda$-like transition confirming the bulk nature of
the magnetism. We propose a phenomenological spin-Hamiltonian that describes
the magnetization plateau as a result of strong Ising character arising from a
quasidoublet ground state of the Tb$^{3+}$ ion in a site of \textit{C$_s$}
symmetry and expressing a significant bond dependent anisotropy.

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The categories of this paper are: cmp-lg
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The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
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The categories of this paper are: bayes-an
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The categories of this paper are: chem-ph
18
The categories of this paper are: econ
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The categories of this paper are: eess
23
The categories of this paper are: solv-int