Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Magnetic phase diagram and magneto-elastic coupling of NiTiO3   We report high-resolution dilatometry on high-quality single crystals of
NiTiO3 grown by means of the optical floating-zone technique. The anisotropic
magnetic phase diagram is constructed from thermal expansion and
magnetostriction studies up to B=15T and magnetization studies in static (15T)
and pulsed (60T) magnetic fields. Our data allow to quantitatively study
magneto-elastic coupling and to determine uniaxial pressure dependencies. While
the entropy changes are found to be of magnetic nature, Gr\"{u}neisen analysis
implies only one relevant energy scale in the whole low-temperature regime.
Thereby, our data suggest that the observed structural changes due to
magneto-elastic coupling and previously reported magnetodielectric coupling[1]
are driven by the same $magnetic$ degrees of freedom that lead to long-range
magnetic order in NiTiO3, which in turn, establishes a linear magnetodielectric
coupling in this compound.

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The categories of this paper are: acc-phys
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The categories of this paper are: eess
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The categories of this paper are: solv-int
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The categories of this paper are: atom-ph
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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-th
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The categories of this paper are: nucl-th
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The categories of this paper are: math-ph
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The categories of this paper are: adap-org
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-ph
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The categories of this paper are: econ
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The categories of this paper are: ao-sci
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The categories of this paper are: hep-lat
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The categories of this paper are: hep-ex