Abstract

Epitaxial (0 0 1) NiMn/NiFe (NiMn at bottom) films were grown on Cu buffer layer by using e-beam evaporation at room temperature. After annealing at 275°C, NiMn layers became an ordered phase, and showed an exchange field of 78 Oe for 15 nm NiFe. During annealing, Cu diffused into NiMn, and hence affected the exchange field.

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