Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Antiferromagnetism and large magnetoresistance in GdBi single crystal   Single crystal of the binary equi-atomic compound GdBi crystallizing in the
rock salt type cubic crystal structure with the space group $Fm\bar{3}m$ has
been grown by flux method. The electrical and magnetic measurements have been
performed on well oriented single crystals. The antiferromagnetic ordering of
the Gd moments is confirmed at $T_{\rm N} = 27.5$~K. The magnetization
measurement performed at $2$~K along the principal crystallographic direction
[100] did not show any metamagnetic transition and no sign of saturation up to
$7$~T. Zero field electrical resistivity reveals a sharp drop at $27.5$~K
suggesting a reduction in the spin disorder scattering due to the
antiferromagnetic alignment of the Gd moments. The residual resistivity at
$2$~K is 390~n$\Omega$cm suggesting a good quality of the grown crystal. The
magneto resistance attains a value of $1.0~\times~10^{4}\%$ with no sign of
saturation, in a field of $14$~T, at $T = 2$~K. Shubnikov de Hass (SdH)
oscillations have been observed in the high field range of the
magnetoresistance with five different frequencies corresponding to the extremal
areas of the Fermi surface. Analysis of the Hall data revealed a near
compensation of the charge carriers accounting for the extremely large
magnetoresistance.

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The categories of this paper are: nlin
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The categories of this paper are: mtrl-th
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The categories of this paper are: math
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The categories of this paper are: chao-dyn
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-th
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The categories of this paper are: patt-sol
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The categories of this paper are: solv-int
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The categories of this paper are: funct-an
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The categories of this paper are: nucl-th
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The categories of this paper are: adap-org
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The categories of this paper are: hep-ph
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The categories of this paper are: physics
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-lat
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The categories of this paper are: nucl-ex