Hybrid finite element and fast Fourier on multipoles algorithm for micromagnetic modeling of perpendicular SOMA media

Author

Long, H. ; Ong, E. ; Xiao, P. ; Liu, Z.

Author_Institution

Hitachi Global Storage Technol., Singapore

fYear

2006

fDate

8-12 May 2006

Firstpage

36

Lastpage

36

Abstract

In this paper, a 3D finite element micromagnetic model is used to simulate the switch dynamics of Self-Organized Magnetic Array (SOMA) recording system. The influence of media grain properties such as anisotropy field distribution is investigated. Our studies also include the signal to noise ratio (SNR) with respect to different bit-array alignments. The fluctuations of signal and noise are investigated under the condition that the transition location is shifted in a square assembled array.

Keywords

fast Fourier transforms; finite element analysis; micromagnetics; perpendicular magnetic recording; SOMA recording system; anisotropy field distribution; fast Fourier transform; finite element micromagnetic model; hybrid finite element; multipoles algorithm; noise fluctuations; perpendicular SOMA media; self-organized magnetic array; signal fluctuations; square assembled array; switch dynamics; Anisotropic magnetoresistance; Finite element methods; Fluctuations; Magnetic anisotropy; Magnetic switching; Micromagnetics; Perpendicular magnetic anisotropy; Perpendicular magnetic recording; Signal to noise ratio; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2006. INTERMAG 2006. IEEE International

Conference_Location

San Diego, CA

Print_ISBN

1-4244-1479-2

Type

conf

DOI

10.1109/INTMAG.2006.375536

Filename

4261470