Materials for magnetooptical recording

In addition to garnets (see Section 5.4.5), great efforts have been made to prepare new magnetooptical materials involving other R-M systems. 

Large coercive field at room temperature, with a strong temperature dependence 

A method for direct overwrite uses two coupled R-M layers. One layer is known as the reference layer and has low coercive force and high Curie temperature. The second layer, known as the memory layer, has high coercivity and low T. First, the magnetisation of the reference layer is oriented downward, by an initialising field with an intensity lower than 

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Due to their impact on information storage technology, a brief account of materials for magnetic recording media and heads is presented. Materials for magnetooptical recording are also discussed. 

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