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Magnetism of Hexagonal Mn1.5X0.5Sn (X = Cr, Mn, Fe, Co) Nanomaterials

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arxiv 1411.7689 v1 pith:QM42MW6S submitted 2014-11-27 cond-mat.mtrl-sci

R. Fuglsby , P. Kharel , W. Zhang , S. Valloppilly , Y. Huh , D. J. Sellmyer This is my paper · ORCID
classification cond-mat.mtrl-sci
keywords curiehexagonalmagneticnanomaterialstemperaturealloysanisotropyannealing
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Mn1.5X0.5Sn (X = Cr, Mn, Fe, Co) nanomaterials in the hexagonal Ni2In-type crystal structure have been prepared using arc-melting and melt spinning. All the rapidly quenched Mn1.5X0.5Sn alloys show moderate saturation magnetizations with the highest value of 458 emu/cm3 for Mn1.5Fe0.5Sn, but their Curie temperatures are less than 300 K. All samples except the Cr containing one show spin-glass-like behavior at low temperature. The magnetic anisotropy constants calculated from the high-field magnetization curves at 100 K are on the order of 1 Merg/cm3. The vacuum annealing of the ribbons at 550 oC significantly improved their magnetic properties with the Curie temperature increasing from 206 K to 273 K for Mn1.5Fe0.5Sn.

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