Magnetic bubble domain structure

Details Magnetic bubble domain structure Magnetic bubble domain structure

1980-09-02

1982-08-03

Moffitt, James W.

Static information storage and retrieval

Magnetic bubbles

Guide structure

365 30, G11C 1908

Patent

active

043430384

ABSTRACT:
A magnetic bubble domain structure comprising a bubble domain layer supported by a nonmagnetic substrate. A control layer is superimposed on the major surface of the domain layer which remote from the substrate. The control layer has an easy axis of magnetization in the plane which defines at least one bubble domain propagation path. The unique control layer according to the invention may be a garnet layer which comprises two sublayers: a first, continuous, sublayer, and a second, discontinuous, sublayer. The discontinuous sublayer defines the required propagation patterns. An advantage of the invention is that the in-plane rotary field to be applied for propagating the bubble domains can be considerably weaker than in bubble domain structures which are equipped with nickel-iron propagation patterns.

REFERENCES:
patent: 3914751 (1975-10-01), Keefe et al.
patent: 3996573 (1976-12-01), Singh
patent: 4171408 (1979-10-01), de Leeow
"Bubble Memories Come to the Boil," P.K. George et al, Electronics, Aug. 2, 1979, pp. 99-109.
"Contiguous-Disk Bubble Domain Devices," Y.S. Lin et al, IEEE Trans. on Magnetics, vol. MAG-13, No. 6, Nov. 1977, pp. 1744-1764.

Affiliated with

Also associated with

Rating

Magnetic bubble domain structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic bubble domain structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic bubble domain structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1470700