Bubble domain structures and method of making

Details Bubble domain structures and method of making Bubble domain structures and method of making

1976-08-16

1979-03-13

Pianalto, Bernard D.

Static information storage and retrieval

Magnetic bubbles

Disposition of elements

365 30, 365 33, 427 47, 427128, 427132, 427250, 427294, 428900, H01F 1002

Patent

active

041445856

ABSTRACT:
A magnetic bubble domain structure and method of making comprising a film of a nickel-iron alloy of 80 to 83.5% nickel content and substantially zero constant of magnetostriction formed by vapor deposition of the alloy onto a flat substrate at a substrate temperature in the range of room temperature to 200.degree. C. at an angle of incidence of approximately 60.degree. to a film thickness of 0.2.mu.m to 3.0.mu.m, the film being immersed in a magnetic field perpendicular to the film and of 1600 to 2400 oersteds intensity.

REFERENCES:
Williams et al., J of AP, vol. 28, No. 5, May 1957, 427-448, pp. 548-555 Mag. Domain Patterns on this Films.
Sugita et al., J. Phys Sec. Japan, vol. 19, (1964) 782, Stripe Magnetic Domain . . . in from Films.

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