Anti-abrasive reading head
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United States of America Patent
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Jul 20, 2004
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N/A
app pub date -
Feb 20, 2002
filing date -
Aug 20, 1999
priority date (Note) -
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Abstract
A magnetooptic read head including a magnetooptic transducer with a multilayer structure with at least one thin magnetic layer with a magnetooptic effect, at least one layer made of nonmagnetic material and having a predetermined wear coefficient, and a layer with good magnetic permeability for closing a magnetic circuit. The layer with good magnetic permeability includes alternating first sublayers made of a magnetic material with good magnetic permeability and second sublayers made of a material having a wear coefficient substantially equivalent to the wear coefficient of the layer made of a nonmagnetic material.
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