Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Competing spin modulations in a magnetically frustrated semimetal EuCuSb   The competing magnetic ground states of the itinerant magnet EuCuSb, which
has a hexagonal layered structure, were studied via magnetization, resistivity,
and neutron diffraction measurements on single-crystal samples. EuCuSb has a
three-dimensional semimetallic band structure as confirmed by band calculation
and angle-resolved photoelectron spectroscopy, consistent with the nearly
isotropic metallic conductivity in the paramagnetic state. However, below the
antiferromagnetic transition temperature of TN1 (8.5 K), the resistivity,
especially along the hexagonal axis, increases significantly. This implies the
emergence of anisotropic magnetic ordering coupled to the conducting electrons.
Neutron diffraction measurements show that the Eu spins, which order
ferromagnetically within each layer, are collinearly modulated
(up-up-down-down) along the hexagonal axis below TN1, followed by the partial
emergence of helical spin modulation below TN2 (6 K). Based on the observation
of anomalous magnetoresistance with hysteretic behavior, we discuss the
competing nature of the ground state inherent in a frustrated Heisenberg-like
spin system with a centrosymmetric structure.

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The categories of this paper are: supr-con
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The categories of this paper are: q-bio
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The categories of this paper are: q-fin
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The categories of this paper are: adap-org
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The categories of this paper are: astro-ph
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The categories of this paper are: econ
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The categories of this paper are: cmp-lg
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The categories of this paper are: mtrl-th
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The categories of this paper are: dg-ga
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The categories of this paper are: chem-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: patt-sol
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The categories of this paper are: gr-qc
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The categories of this paper are: alg-geom
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The categories of this paper are: chao-dyn
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The categories of this paper are: bayes-an