An effective-viscosity description of domain-wall motion in magnetic thin films with perpendicular anisotropy

Author

Skomski, R. ; Giergiel, J. ; Kirschner, J.

Author_Institution

Max-Planck-Inst. fur Mikrostrukturphys., Halle, Germany

Volume

32

Issue

5

fYear

1996

fDate

9/1/1996 12:00:00 AM

Firstpage

4576

Lastpage

4578

Abstract

The expansion of magnetic domains in thin films with perpendicular anisotropy is investigated. To determine the domain-wall-velocity as a function of the applied magnetic field a selfconsistent magnetic-viscosity approach is used. The main predictions of the theory are a linear behaviour in the moderately strong fields, a quasi-exponential behaviour for fields close to the propagation field, and a negative velocity for very small and negative fields. The predictions of the theory are compatible with domain-wall investigations on Au/Co/Au sandwiches

Keywords

magnetic domain walls; magnetic thin films; magnetisation; perpendicular magnetic anisotropy; Au/Co/Au sandwiches; applied magnetic field; domain-wall investigations; domain-wall motion; effective-viscosity description; linear behaviour; magnetic thin films; magnetic-viscosity; moderately strong fields; negative velocity; perpendicular anisotropy; propagation field; quasi-exponential behaviour; Anisotropic magnetoresistance; Coercive force; Energy barrier; Magnetic domain walls; Magnetic domains; Magnetic films; Magnetic separation; Magnetization; Micromagnetics; Viscosity;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.539084

Filename

539084