Magnetic Investigations on Ni-Mn-Sn Ferromagnetic Shape Memory Alloy

Subham Chatterjee; S. Giri; S.K. De; S. Majumdar

doi:10.4028/www.scientific.net/AMR.52.215

Paper Titles

Hybridization Effects in Ni-Mn Based Shape Memory Alloys: XAFS Study
p.155

Electronic and Structural Properties of Ferromagnetic Shape Memory Alloys Studied by Density Functional Theory
p.165

Signature of Austenitic to Martensitic Phase Transition in Ni₂MnGa in Mn and Ni K-Edge XANES Spectra
p.175

A Charge Compton Profile Study of Ni₂MnGa: Theory and Experiment
p.181

Effect of External Fields on the Martensitic Transformation in Ni-Mn Based Heusler Alloys
p.189

Effect of Magnetic Field on Martensite to Intermediate Phase Transformation in Ni₂MnGa
p.199

Magneto-Transport and Magnetic Properties of Ni-Mn-Ga
p.207

Magnetic Investigations on Ni-Mn-Sn Ferromagnetic Shape Memory Alloy
p.215

Magnetocaloric and Shape-Memory Properties in Magnetic Heusler Alloys
p.221

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Magnetic Investigations on Ni-Mn-Sn Ferromagnetic Shape Memory Alloy

Abstract:

Ferromagnetic shape memory alloy of nominal composition Ni50Mn35Sn15 has been investigated by magnetic and transport measurements. Clear signature of first order martensitic transition is observed over a region around 180 K in resistivity, dc magnetization and ac susceptibility data. Field-cooled and zero-field-cooled magnetizations diverge below the martensitic transition, signifying magneto-thermal irreversibility originating from pinning by variants. The sample shows large negative magneto-resistance (-25% at 90 kOe) in the region of martensitic transition, which was found to be highly irreversible. A clear correspondence between magnetoresistance and dc magnetization is observed above the field of technical saturation.