magnetic properties and magnetocaloric effect in layered ndmn1.9v0.1si2

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ID: 212397
2014
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Abstract
The structural and magnetic properties of the compounds NdMn2-xVxSi2 have been studied by x-ray and high resolution neutron powder diffraction, specific heat, dc magnetization, and differential scanning calorimetry measurements over the temperature range 3-450 K. The Curie temperature and Néel temperature of layered NdMn1.9V0.1Si2 are been indicate at TC ~ 24 K and TN ~ 376 K respectively. The giant magnetocaloric effect (GMCE) around TC is found in layered NdMn1.9V0.1Si2 associated with first order magnetic transition from antiferromagnetic [AFil-type] to ferromagnetic [F(Nd)+Fmc]. This behaviorhas been confirmed as contribution of the magnetostructural coupling by using neutron powder diffraction. The magnetic entropy change −ΔSM ~ 25.4J kg-1 K-1 and adiabatic temperature change ΔTad~ 6.7 K have been determined using magnetization and specific heat measurement under 0-8 T field applied. This compound belongs with the small thermal ~ 0.8 K and magnetic ~ 0.1 T hysteresis characteristic providing high potential material for magnetic refrigerator.
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md2014epjmagnetic Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Din M.F. Md, Wang J.L., Zeng R., Kennedy S.J., Campbell S.J, Dou S.X.
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Journal utilitas mathematica
Year 2014
DOI
10.1051/epjconf/20147504001
URL
http://dx.doi.org/10.1051/epjconf/20147504001
Keywords
physics

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