Bloch line magnetic memory

Details Bloch line magnetic memory Bloch line magnetic memory

1991-09-19

1993-11-09

Popek, Joseph A.

Static information storage and retrieval

Magnetic bubbles

Strip domain

365 87, G11C 1908, G11C 1114

Patent

active

052608913

ABSTRACT:
A Bloch line magnetic memory has a magnetic film of thickness h located on a substrate and includes Bloch lines of width .LAMBDA.o. The magnetic film satisfies the condition (1) h/.LAMBDA.o<14 with .LAMBDA.o=.sqroot.A/2.pi.Ms.sup.2, in which A represents the magnetic exchange constant and 4.pi.Ms represents the saturation magnetization of the film.

REFERENCES:
patent: 3932688 (1976-01-01), Sugita et al.
patent: 4263374 (1981-04-01), Glass et al.
patent: 4926377 (1990-05-01), Hidaka
Fernseh und Kino Technik. vol. 41, No. 1/2, Jan. 1987, Berlin de pg. -3-42; Engemann: "Digitale Speichermedien der Zukunft" p. 37, col. 2, line 1-p. 39, col. 3, line 6; FIGS. 9-13.
Proceedings: "VLSI and Computer Peripherals" Comp Euro 89; pp. 1.68-1.75; Engemann Vertical Bloch Line Memory: State of the Art and Future Prospect.
Japanese Journal of Applied Physics. vol. 25, No. 3, Mar. 1986, Tokyo JP pp. 228-231; Hidaka: "A Bloch Line Pair Generator using the Flank Wall Near the Stripe Domain Head for the Bloch Line Memory", p. 229, col. 1, line 13-p. 229, col. 2, line 5.
Electronic Product Design Oct. 1985, Bromley, GB pp. 69-72; Clegg: "Vertical Bloch Line Memory Theory and Technology" p. 69, col. 1, line 1-p. 71, col. 1, line 25; FIGS. 1-4.

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