Low temperature magnetic properties of a Ni50Mn34In16 ball-milled metamagnetic shape memory alloy
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Date
2016-09-01Author
Larumbe, Silvia
Sánchez Alarcos, Vicente
Pérez de Landazábal, José Ignacio
Recarte Callado, Vicente
García Martínez, José Ángel
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Journal of Non-Crystalline Solids 447 : 16-20 (2016)
Abstract
[EN] The effect of the atomic disorder induced by ball-milling on the structure and the magnetic properties has been analyzed in a Ni50Mn34In16 metamagnetic shape memory alloy. The as-milled samples displayed an amorphous structure which crystallizes to a disordered B2 structure on annealing. On further annealing, several recovery processes leading to the austenitic L21 structure and the subsequent martensitic transformation are observed. As a result of the recovery processes, the magnetic order drastically varies concurrent with the long-range atomic order. In particular, the magnetism evolves from a frustrated magnetic state compatible with a canonical spin-glass, observed in the amorphous structure, to the well-developed ferromagnetic state.