PerspectiveMAGNETISM

Magnets Fast and Small

Science  20 Oct 2000:
Vol. 290, Issue 5491, pp. 466-467
DOI: 10.1126/science.290.5491.466

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Summary

As magnetic devices become smaller and faster, it is becoming increasingly important to understand the dynamics of magnetic domains on small spatial and temporal scales. In their Perspective, Miltat and Thiaville highlight the report by Acremann et al., whose magnetooptical microscope combines state of the art space and time resolution, thus allowing the precessional motion of magnetic domains to be studied directly. The dynamics they observe are complex, indicating that in both the space and time domains, neither the magnetization nor the applied field should be viewed as uniform.

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