Nucleation bubble generator for bubble domain devices

Details Nucleation bubble generator for bubble domain devices Nucleation bubble generator for bubble domain devices

1981-03-02

1983-06-14

Moffitt, James W.

Static information storage and retrieval

Magnetic bubbles

Generators

G11C 1908

Patent

active

043887007

ABSTRACT:
A magnetic bubble domain device nucleation source for producing magnetic bubble domains is disclosed, in which bubble domains along with possibly unwanted duplicate bubble domains are produced in response to a current pulse. A first bubble domain guide structure is provided which coupled and disposed directly adjacent the nucleator and defines a first bubble domain propagation path for guiding the movement of generated bubble domains in response to a cyclical change in orientation of a reorientating field within the plane of the magnetic layer. This first guide structure functions to receive bubble domains representative of information. More particularly, a second bubble domain guide structure is provided also disposed directly adjacent the nucleator and the first bubble domain guide structure. The second bubble domain guide structure is operative for guiding the movement of the unwanted duplicate bubble domains produced in the layer by the nucleator simultaneously with the production of ones of the bubble domains which are representative of information and transferred to the first bubble domain guide structure. The second bubble domain guide structuring functions to receiving the unwanted duplicate bubble domains and eliminate them.

REFERENCES:
patent: 4257109 (1981-03-01), Schwartz

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