| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1480138 | Journal of Non-Crystalline Solids | 2016 | 5 Pages |
•The effect of the structural disorder induced by a ball milling process on the magnetic properties is analyzed.•As result, a spin glass state at low temperatures is detected in the corresponding sample with higher ball milling time.•The analysis of the AC susceptibility dependence with frequency draws to a canonical spin glass state.•Different annealing treatments give rise to a crystallization process in two stages, first to a disordered B2 structure and afterwards to a L21 structure.
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.
