Thermomagnetic recording method

Details Thermomagnetic recording method Thermomagnetic recording method

1982-03-24

1986-04-08

Moffitt, James W.

Static information storage and retrieval

Magnetic bubbles

Detectors

365122, G11C 1908, G11C 1930

Patent

active

045817170

ABSTRACT:
A thermomagnetic recording method is capable of recording information on a layer of soft magnetic material which has an axis of easy magnetization normal to the surface of the layer and in which magnetic bubble domains are generated by application of a bias magnetic field. Information is recorded by radiating the layer with pulses of a focused beam so as to form a magnetic bubble domain having a magnetization opposite to a direction of the bias magnetic field. Recorded information is stable but can be easily erased.

REFERENCES:
patent: 3810131 (1974-05-01), Ashkin et al.
patent: 3899780 (1975-08-01), Otala

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