Title :
Micromagnetic calculation of bias field and coercivity of exchange biased IrMn/NiFe bilayers
Author :
Kirschner, M. ; Suess, D. ; Schrefl, T. ; Fidler, J. ; Chapman, J.N.
Author_Institution :
Dept. of Solid State Phys., Vienna Univ. of Technol., Austria
fDate :
March 30 2003-April 3 2003
Abstract :
Domain processes associated with exchange bias in IrMn/NiFe are investigated using a micromagnetic approach. The model give quantitative estimates of the bias field and the coercivity for antiferromagnetic/ferromagnetic bilayers with fully compensated interfaces. The numerically calculated domain processes are compared with those observed in transmission electron microcopy studies of exchange biased bilayers.
Keywords :
antiferromagnetic materials; coercive force; exchange interactions (electron); ferromagnetic materials; interface magnetism; iridium alloys; iron alloys; magnetic domains; manganese alloys; nickel alloys; IrMn-NiFe; antiferromagnetic/ferromagnetic bilayers; bias field; coercivity; domain processes; exchange biased IrMn/NiFe bilayers; fully compensated interfaces; micromagnetic calculation; Anisotropic magnetoresistance; Coercive force; Hysteresis; Magnetic anisotropy; Magnetic domains; Magnetization; Micromagnetics; Perpendicular magnetic anisotropy; Physics; Solids;
Conference_Titel :
Magnetics Conference, 2003. INTERMAG 2003. IEEE International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-7647-1
DOI :
10.1109/INTMAG.2003.1230880
