Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Relative Cooling Power Enhancement by Tuning Magneto-structural
  Stability in Ni-Mn-In Heusler Alloys   Off-stoichiometric Ni$_2$MnIn Heusler alloys have drawn recent attention due
to their large magnetocaloric entropy change associated with the first-order
magneto-structural transition. Here we present crystal structural, calorimetric
and magnetic studies of three compositions. Temperature-dependent X-ray
diffraction shows clear structural transition from a 6M modulated monoclinic to
a L2$_1$ cubic. A significant enhancement of relative cooling power (RCP) was
achieved by tuning the magnetic and structural stability through minor
compositional changes, with the measured results quantitatively close to the
prediction as a function of the ratio between the martensitic transition
($T_m$) temperature and austenite Curie temperature ($T_C$) although the
maximal magnetic induced entropy change ($\Delta S_{max}$) reduction is
observed in the same time. The results provided an evaluation guideline of RCPs
as well as magnetic-induced entropy change in designing practical active
materials.

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The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
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The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
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The categories of this paper are: adap-org
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The categories of this paper are: stat
29
The categories of this paper are: funct-an
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The categories of this paper are: solv-int
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th