Damped gyromagnetic switching

Author

Mallinson, John C.

Author_Institution

Mallinson Magnetics Inc., Belmont, CA, USA

Volume

36

Issue

4

fYear

2000

fDate

7/1/2000 12:00:00 AM

Firstpage

1976

Lastpage

1981

Abstract

The gyromagnetic switching behavior of a single-domain grain or particle with uniaxial magnetocrystalline and shape anisotropy is solved analytically by the gyromagnetic torque equation using physically plausible Gilbert damping. The sole restriction is that the anisotropy easy axis and the applied field be collinear. The analytical solution for the magnetization switching time is then used to calculate precisely various phenomena which occur in pulsed-current stripline testing of magnetic recording storage media. Also, the analytic relationship between the polar and azimuthal angles of the magnetization during damped precession is derived

Keywords

damping; gyromagnetic effect; magnetic anisotropy; magnetic particles; magnetic switching; magnetisation reversal; Gilbert damping; gyromagnetic switching; magnetic recording storage medium; magnetization precession; magnetization switching; pulsed current stripline testing; single-domain grain; single-domain particle; torque equation; uniaxial magnetocrystalline anisotropy; uniaxial shape anisotropy; Anisotropic magnetoresistance; Equations; Gyromagnetism; Magnetic analysis; Magnetic anisotropy; Magnetic switching; Magnetization; Perpendicular magnetic anisotropy; Shape; Torque;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.875251

Filename

875251