Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Antiferromagnetic ordering and dipolar interactions of YbAlO$_3$   In this paper we report low-temperature magnetic properties of the rare-earth
perovskite material YbAlO$_3$. Results of elastic and inelastic neutron
scattering experiment, magnetization measurements along with the crystalline
electrical field (CEF) calculations suggest that the ground state of Yb moments
is a strongly anisotropic Kramers doublet, and the moments are confined in the
$ab$-plane, pointing at an angle of $\varphi = \pm 23.5^{\circ}$ to the
$a$-axis. With temperature decreasing below $T_{\rm N}=0.88$ K, Yb moments
order into the coplanar, but non-collinear antiferromagnetic (AFM) structure
$AxGy$, where the moments are pointed along their easy-axes. In addition, we
highlight the importance of the dipole-dipole interaction, which selects the
type of magnetic ordering and may be crucial for understanding magnetic
properties of other rare-earth orthorhombic perovskites. Further analysis of
the broad diffuse neutron scattering shows that one-dimensional interaction
along the $c$-axis is dominant, and suggests YbAlO$_3$ as a new member of one
dimensional quantum magnets.

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The categories of this paper are: q-bio
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The categories of this paper are: nucl-ex
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-th
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The categories of this paper are: math
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The categories of this paper are: math-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: cmp-lg
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The categories of this paper are: econ
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The categories of this paper are: physics
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The categories of this paper are: hep-ex
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The categories of this paper are: cs
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: astro-ph