Title :
A study of the NiFe/NiMn exchange couple
Author :
Devasahayam, Adrian J. ; Kryder, Mark H.
Author_Institution :
Data Storage Syst. Center, Carnegie Mellon Univ., Pittsburgh, PA, USA
fDate :
9/1/1996 12:00:00 AM
Abstract :
The effects of deposition order on the magnetic properties of the NiFe/NiMn exchange couple were studied. The use of a thin underlayer, to enhance these properties, was also investigated for the deposition order NiMn/NiFe. We found that the use of such an underlayer was essential for the exchange field to be greater than the coercivity. We observed that the underlayer film thickness did not have a dramatic effect on the final exchange field obtained. X-ray diffraction studies did not reveal a strong correlation between film texture and exchange fields. The blocking temperature was also measured for the deposition order NiFe/NiMn
Keywords :
coercive force; magnetic heads; magnetic multilayers; magnetoresistance; nickel alloys; sputtered coatings; surface texture; NiFe-NiMn; NiFe/NiMn exchange couple; Si; X-ray diffraction studies; blocking temperature; coercivity; deposition order; thickness; thin underlayer; Antiferromagnetic materials; Ferrimagnetic materials; Magnetic anisotropy; Magnetic domain walls; Magnetic heads; Magnetic noise; Magnetic properties; Perpendicular magnetic anisotropy; Saturation magnetization; Temperature sensors;
Journal_Title :
Magnetics, IEEE Transactions on
