Micro-annealing studies of Pt/Co multilayers for magneto-optic recording applications

Author

Wright, C.D. ; Clegg, W.W. ; Boudjemline, A. ; Heyes, N.A.E. ; Grundy, P.J. ; Pollard, R.J. ; Greaves, S.J. ; Petford-Long, A.K. ; Kim, Y.H. ; Jakubovics, J.P.

Author_Institution

Dept. of Electr. Eng., Manchester Univ., UK

Volume

28

Issue

5

fYear

1992

fDate

9/1/1992 12:00:00 AM

Firstpage

2671

Lastpage

2673

Abstract

Microannealing studied of the hysteresis properties of microscopic regions of Pt/Co multilayers as a function of the number of write cycles are described. Coercivity was found to increase quite dramatically, while Kerr rotation and loop squareness were reduced. Similar results were obtained for bulk-annealing, and have been explained in terms of Pt and Co diffusion and crystalline growth

Keywords

Kerr magneto-optical effect; cobalt; coercive force; laser beam annealing; magnetic hysteresis; magnetic multilayers; magneto-optical recording; platinum; Kerr rotation; Pt-Co multilayers; bulk-annealing; coercivity; crystalline growth; diffusion; hysteresis properties; loop squareness; magneto-optic recording; microannealing; microscopic regions; write cycles; Annealing; Coercive force; Crystallization; Magnetic hysteresis; Magnetic multilayers; Magnetic properties; Magnetooptic effects; Magnetooptic recording; Microscopy; Nonhomogeneous media;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.179592

Filename

179592