Abstract

We report on structural and magnetic properties of Ni50Mn50−xSnx (x = 12 ÷ 14) films and compare them with those of the bulk Ni–Mn–Sn alloys. Magnetic measurements reveal clear presence of martensitic transformation in bulk alloys but in the flash-evaporated Ni–Mn–Sn thin films martensitic transformation is usually less visible. The best film samples annealed for 1 h at about 900 K exhibit clear signs of martensitic transformation: i.e., a small defect in magnetization and a substantial increase in ferromagnetic resonance line width.

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