磁気光学顕微鏡とその応用

抄録

The magnetic microstructure, i.e. the arrangement of domains and domain walls, forms the mesoscopic link between basic physical properties of magnetic material and its macroscopic properties. The development and optimization of magnetic materials, therefore, require a solid knowledge of the underlying domains. In most case, such as knowledge can only be obtained by direct imaging. A Kerr microscope has the great advantage of allowing easy handling and smooth observation without any auxiliary preparation. In this report, a Kerr microscope and magnetic domain imaging technique are reviewed.