Multiscale calculations of magnetization reversal in soft/hard magnetic bilayer

Author

Sànchez, F. García ; Chubykalo-Fesenko, O. ; Mryasov, O. ; Chantrell, R.W.

Author_Institution

Inst. de Ciencia de Materiales de Madrid, CSIC, Madrid, Spain

fYear

2005

fDate

4-8 April 2005

Firstpage

825

Lastpage

826

Abstract

In this paper, results of multiscale simulations of the switching processes in soft-hard magnetic bilayers FePt/FeRh and FePt/Fe₃Pt were presented. The multiscale model consisted of an atomistic model at the interface and a micromagnetic model sufficiently far from the interface region. Results of the switching field show a decrease of the coercive field that saturates at interfacial exchange values of 10% of the bulk exchange.

Keywords

coercive force; interface magnetism; iron alloys; magnetic recording; magnetic switching; magnetisation reversal; micromagnetics; permanent magnets; platinum alloys; rhodium alloys; soft magnetic materials; FePt-Fe₃Pt; FePt-FeRh; atomistic model; coercive field; interface region; interfacial exchange; magnetic recording media; magnetization reversal; micromagnetic model; multiscale calculations; soft-hard magnetic bilayer; switching field; switching processes; Atomic layer deposition; Couplings; Magnetic anisotropy; Magnetic domain walls; Magnetization reversal; Magnetostatics; Micromagnetics; Perpendicular magnetic anisotropy; Saturation magnetization; Soft magnetic materials;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International

Print_ISBN

0-7803-9009-1

Type

conf

DOI

10.1109/INTMAG.2005.1463841

Filename

1463841