Title :
Microstructure and magnetic domain structure of Co/NiFe/MnNi systems
Author :
Portier, X. ; Petford-Long, A.K. ; Mao, S. ; Goodman, A.M. ; Laidler, H. ; O´Grady, K.
Author_Institution :
Dept. of Mater., Oxford Univ., UK
fDate :
9/1/1999 12:00:00 AM
Abstract :
A Co/NiFe ferromagnetic bilayer has been exchange-coupled to MnNi and the resulting system has been annealed at different temperatures for several hours in a static magnetic field. The magnetic and microstructural properties have been studied as well as the effect of a Ta seed layer. The study has focused on the evolution of the exchange-bias field with that of MnNi structure which transforms from a nonmagnetic as-grown cubic phase to the antiferromagnetic tetragonal phase after annealing
Keywords :
annealing; antiferromagnetic materials; cobalt; crystal microstructure; exchange interactions (electron); ferromagnetic materials; iron alloys; magnetic domains; magnetic multilayers; manganese alloys; nickel alloys; Co-NiFe-MnNi; annealing; antiferromagnetic tetragonal phase; exchange-bias field; exchange-coupling; ferromagnetic bilayer; magnetic domain structure; microstructure; static magnetic field; Annealing; Antiferromagnetic materials; Atomic force microscopy; Magnetic domains; Magnetic fields; Magnetic heads; Magnetic materials; Magnetization; Microstructure; Temperature;
Journal_Title :
Magnetics, IEEE Transactions on
