Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nature of the ferromagnetic-antiferromagnetic transition in
  Y$_{1-x}$La$_{x}$TiO$_{3}$   We explore the magnetically-ordered ground state of the
isovalently-substituted Mott-insulator Y$_{1-x}$La$_{x}$TiO$_{3}$ for $x$
$\leq$ 0.3 via single crystal growth, magnetometry, neutron diffraction, x-ray
magnetic circular dichroism (XMCD), muon spin rotation ($\mu$SR) and
small-angle neutron scattering (SANS). We find that the decrease in the
magnetic transition temperature on approaching the ferromagnetic (FM) -
antiferromagnetic (AFM) phase boundary at the La concentration $x_c$ $\approx$
0.3 is accompanied by a strong suppression of both bulk and local ordered
magnetic moments, along with a volume-wise separation into magnetically-ordered
and paramagnetic regions. The thermal phase transition does not show
conventional second-order behavior, since neither a clear signature of dynamic
critical behavior nor a power-law divergence of the magnetic correlation length
is found for the studied substitution range; this finding becomes increasingly
obvious with substitution. Finally, from SANS and magnetometry measurements, we
discern a crossover from easy-axis to easy-plane magneto-crystalline anisotropy
with increasing La substitution. These results indicate complex changes in
magnetic structure upon approaching the phase boundary.

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The categories of this paper are: q-fin
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The categories of this paper are: q-bio
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The categories of this paper are: mtrl-th
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The categories of this paper are: funct-an
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The categories of this paper are: nlin
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The categories of this paper are: eess
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The categories of this paper are: cmp-lg
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The categories of this paper are: math-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: math
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The categories of this paper are: stat
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The categories of this paper are: alg-geom
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The categories of this paper are: astro-ph
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The categories of this paper are: adap-org
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The categories of this paper are: solv-int
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The categories of this paper are: chao-dyn