Device for biasing bubble domains

Details Device for biasing bubble domains Device for biasing bubble domains

1976-11-01

1977-12-06

Moffitt, James W.

Static information storage and retrieval

Magnetic bubbles

Bias

365 19, G11C 1908

Patent

active

040620026

ABSTRACT:
A device adapted for biasing bubble domains in a low externally applied magnetic bias field. This device is suitable for use when isolated bubbles or a column of bubbles are translated to or from a bubble lattice. The device has a pair of parallel channels, each containing a stripe domain therein. Positioned between the pair of channels is a channel for the translation of isolated bubbles. Positioned in juxtaposition with the bubble containing channel and the pair of stripe containing channels are a pair of parallel conductors. The passage of current through one conductor in one direction and a current through the other conductor in the opposite direction together with the presence of the stripe domains in the two channels provide a biasing field around the channel containing the bubbles which permits the isolated bubble operating margin to overlap the lattice operating margin.

REFERENCES:
patent: 3913079 (1975-10-01), Rosier

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