A scanning laser microscope system to observe static and dynamic magnetic domain behaviour

Author

Clegg, Warwick ; Jenkins, David ; He, Lianna ; Windmill, James ; Fry, Nick

Author_Institution

Centre for Res. in Inf. Storage Technol., Plymouth Univ., UK

Volume

2

fYear

2000

fDate

2000

Firstpage

559

Abstract

A scanning laser microscope has been designed to observe the dynamic behaviour of domain switching during the thermo-magnetic write process and the subsequent magnetisation state (domain orientation) in thin-films and devices. It will also be used to write to magneto-optic (MO) disk material thermo-magnetically prior to imaging. Images are derived from the longitudinal and polar magneto-optic Kerr effects, which are wavelength dependent, using the appropriate laser wavelength. In this paper the different configurations for imaging are described, and some initial images are presented

Keywords

Kerr magneto-optical effect; magnetic variables measurement; magnetisation; measurement by laser beam; optical microscopes; thermomagnetic effects; domain orientation; domain switching; dynamic magnetic domain; longitudinal Kerr effects; magnetisation state; magneto-optic disk; polar magneto-optic Kerr effect; scanning laser microscope; thermo-magnetic write process; thin-film devices; thin-films; Kerr effect; Magnetic force microscopy; Magnetic materials; Magnetic switching; Magnetization; Magnetooptic devices; Magnetooptic effects; Optical design; Optical materials; Thin films;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2000. IMTC 2000. Proceedings of the 17th IEEE

Conference_Location

Baltimore, MD

ISSN

1091-5281

Print_ISBN

0-7803-5890-2

Type

conf

DOI

10.1109/IMTC.2000.848799

Filename

848799