Domain structure and magnetisation processes in magneto-optic Co/Pt thin films

Author

Phillips, G.N. ; O´Grady, K. ; Meng, Q. ; Lodder, J.C.

Author_Institution

Magnetic Mater. Res. Group, Univ. Coll. of North Wales, Bangor, UK

Volume

32

Issue

5

fYear

1996

fDate

9/1/1996 12:00:00 AM

Firstpage

4070

Lastpage

4072

Abstract

We report on a study of the magnetic properties of Co/Pt multilayer films. We have examined nucleation and domain wall pinning controlled materials and observe two distinct forms of behaviour in terms of the samples hysteresis loops. We interpret our data in terms of a two coercivity model and we report on the magnetic behaviour in terms of a detailed analysis of irreversible magnetisation changes obtained from the measurement of remanence curves. The domain structures in remanent states have been examined using an MFM and we find a correlation between domain size and shape and the form of the associated remanence curves

Keywords

Kerr magneto-optical effect; cobalt; coercive force; ferromagnetic materials; magnetic domain walls; magnetic domains; magnetic hysteresis; magnetic multilayers; magneto-optical recording; platinum; remanence; Co-Pt; Co/Pt multilayer films; domain shape; domain size; domain structure; domain structures; domain wall pinning controlled materials; hysteresis loops; irreversible magnetisation changes; magnetic properties; magnetisation processes; magneto-optic Co/Pt thin films; nucleation; remanence curves; two coercivity model; Coercive force; Magnetic domain walls; Magnetic domains; Magnetic films; Magnetic hysteresis; Magnetic materials; Magnetic multilayers; Magnetic properties; Magnetization; Remanence;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.539266

Filename

539266