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

被引:3
|
作者
Clegg, W
Jenkins, DFL
Helian, N
Windmill, JFC
Fry, N
Atkinson, R
Hendren, WR
Wright, CD
机构
[1] Univ Plymouth, Ctr Res Informat Storage Technol, Plymouth PL4 8AA, Devon, England
[2] Queens Univ Belfast, Sch Math & Phys, Belfast BT7 1NN, Antrim, North Ireland
[3] Univ Exeter, Sch Engn & Comp Sci, Exeter EX4 4QJ, Devon, England
关键词
data storage; dynamic laser microscopy; magneto-optics;
D O I
10.1109/19.989886
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Scanning laser microscopes (SLMs) have been used to characterize the magnetic properties of materials for some time. The first SLM built [1] was a purely static system capable of imaging magnetic domains. Dynamic capability was introduced with the development of the R-Theta microscope [2]. However, this microscope utilizes a rotating drive. A scanning laser microscope has been designed to observe the dynamic behavior of domain switching during the thermo-magnetic write process and the subsequent magnetization state (domain orientation) in stationary media, without the requirement for a rotating drive. It will also be used to write to the magneto-optic (MO) disk material thermo-magnetically prior to imaging. Images are derived from the longitudinal and polar magneto-optic Kerr effects. In this paper, the different configurations for imaging are described and some initial images are presented.
引用
收藏
页码:10 / 13
页数:4
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