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

fYear

2003

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2003. INTERMAG 2003. IEEE International

Conference_Location

Boston, MA, USA

Print_ISBN

0-7803-7647-1

Type

conf

DOI

10.1109/INTMAG.2003.1230880

Filename

1230880