Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Strain behavior and lattice dynamics in Ni50Mn35In15   The lattice dynamics in the polycrystalline shape-memory Heusler alloy
Ni$_{50}$Mn$_{35}$In$_{15}$ has been studied by means of resonant ultrasound
spectroscopy (RUS). RUS spectra were collected in a frequency range $100-1200$
kHz between 10 and 350 K. Ni$_{50}$Mn$_{35}$In$_{15}$ exhibits a ferromagnetic
transition at 313 K in the austenite and a martensitic transition at 248 K
accompanied by a change of the magnetic state. Furthermore it displays a
antiferromagnetic to ferromagnetic transition within the martensitic phase. We
determined the temperature dependence of the shear modulus and the acoustic
attenuation of Ni$_{50}$Mn$_{35}$In$_{15}$ and compared it with magnetization
data. Following the structural softening, which accompanies the martensitic
transition as a pretransitional phenomenon, a strong stiffening of the lattice
is observed at the martensitic magneto-structural transition. Only a weak
magnetoelastic coupling is evidenced at the Curie temperatures both in
austenite and martensite phase. The large acoustic damping in the martensitic
phase compared with the austenitic phase reflects the motion of the twin walls,
which freezes out in the low temperature region.

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The categories of this paper are: astro-ph
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The categories of this paper are: math-ph
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The categories of this paper are: hep-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: q-bio
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The categories of this paper are: quant-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: math
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The categories of this paper are: acc-phys
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The categories of this paper are: plasm-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-lat
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The categories of this paper are: physics
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The categories of this paper are: q-fin
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The categories of this paper are: hep-ex
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The categories of this paper are: stat