Complementary bi-level magnetic bubble propagation circuit

Details Complementary bi-level magnetic bubble propagation circuit Complementary bi-level magnetic bubble propagation circuit

1981-06-22

1983-11-15

Moffitt, James W.

Static information storage and retrieval

Magnetic bubbles

Guide structure

365 32, G11C 1908

Patent

active

044159900

ABSTRACT:
A bi-level magnetic bubble domain propagation structure in which the domain guide structure is formed by a spatially periodic pattern of permalloy implemented on two discrete levels separated by a substantially vertical gap. The structure forms a pattern of contiguous disk on one level and the complementary image of such disks on the second level.

REFERENCES:
patent: 3699551 (1972-10-01), Fischer
patent: 3988722 (1976-10-01), Keefe et al.
patent: 4086661 (1978-04-01), Matsuyama et al.
patent: 4283775 (1981-08-01), Cohen
IBM Technical Bulletin, vol. 18, No. 9, Feb. 1976, "Contiguous Bubble Domain Propagation Structures," M. S. Cohen.
"1-.mu.m Bubble Permalloy Contiguous-Disk Devices"--Journal of Applied Physics, vol. 52, No. 3, Mar. 1981, pp. 2374-2376.
IEEE Transactions on Magnetics-vol. MAG-15, No. 6, Nov. 1979; pp. 1654-1656.

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