Transfer of domains between fields

Details Transfer of domains between fields Transfer of domains between fields

1975-12-15

1977-03-29

Moffitt, James W.

Communications: electrical

Digital comparator systems

G11C 1908

Patent

active

040152499

ABSTRACT:
A system suitable to transfer a bubble domain from one field to a second field where the field is the largest area formed by exposing a pattern and which all of the dimensions are critical is disclosed. A magnetic domain is propagated out of the first field through an outlet into an inlet of the second field. In a preferred embodiment, the width of the outlet is one to ten bubble diameters and the width of the inlet opening is two to ten bubble diameters, the inlet opening being always at least as wide as the outlet opening. Associated with the inlet opening is a contracting means, for example, a Chevron pattern of decreasing height, which reduces the size of the domain to a size suitable for use in the bubble system in the second magnetic field.

REFERENCES:
patent: 3786446 (1974-01-01), Bonyhard
patent: 3789373 (1974-01-01), Bonyhard

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