Exchange anisotropy of epitaxial (001) NiMn/NiFe

Double shifted magnetization curves in magnetic bilayers

“…Samples with the structure Si(100)/Cu(15 nm)/ Ni 80 Fe 20 (35 nm)/NiMn(50 nm)/Co(t nm)/Pd(15 nm) were grown in an e-beam evaporation system, and the thickness of Co was varied from 5 to 25 nm. Cu was used to initiate (001) epitaxial growth, and thick Ni 80 Fe 20 was used to prevent the Cu from diffusing into NiMn [68]. No external ®eld was applied during the deposition, but after the deposition the samples were ®eld-annealed ex-situ in a ®eld of 1000 Oe at 2808C in vacuum.…”