Abstract

Since their discovery and characterization, a huge magnetics research effort has been centered on the magnetic garnets. They have become the most studied and best understood class of magnetic materials, and continue to find their way into new technology. One new property that garnets have brought to magnetics is transparency in the visible and near infrared. Because light interacts with magnetization, this immediately made it possible to see the distribution of magnetization, to see the magnetic domain structure. This was crucial in the invention and development of magnetic bubble technology. There is much current interest in magneto-optical transmission devices such as infrared isolators using magnetic garnet bulk crystals and films.

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