Device operating with the displacement of magnetic domain walls

Details Device operating with the displacement of magnetic domain walls Device operating with the displacement of magnetic domain walls

1976-05-03

1978-03-14

Moffitt, James W.

Static information storage and retrieval

Magnetic bubbles

Velocity

G11C 1908

Patent

active

040794601

ABSTRACT:
A device operating with the displacement of magnetic domain walls and comprising a layer of a magnetizable material having an easy axis of magnetization perpendicular to the plane of the layer, in which layer magnetic domain walls can be produced, maintained and moved, as well as a device to cause a magnetic propulsive field to act upon magnetic domains present in the layer so as to move them between previously determined positions. In order to obtain maximum speeds, the propulsive field acting upon a domain wall during the movement should at any instant have a value which is below the value for which a drop occurs in the function which characterizes the magnetizable material and which represents the relation between the propulsive field and the speed.

REFERENCES:
patent: 3876994 (1975-04-01), Calhoun
patent: 3942165 (1976-03-01), DE Leeuw

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