An amplified magneto‐optical signal readout by using a dynamic domain expansion effect has been proposed and experimentally confirmed. Small domains of around 0.3 μm in diameter were expanded by a pulsed external field on the readout layer copied from the recording layer. An amplified readout signal up to three times larger than that of the original one has been achieved.

Topics
Magnetism, Optical recording
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© 1996 American Institute of Physics.
1996
American Institute of Physics
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