Magnetic bubble motion producer

Details Magnetic bubble motion producer Magnetic bubble motion producer

1998-06-04

1999-12-28

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Permanent magnet-actuated switches

Plural magnets

365 1, 335306, 310 80, H01H 900

Patent

active

060087099

ABSTRACT:
Motion of a magnetic bubble material is caused by subjecting magnetic bubbles within the material to a magnetic field gradient. The bubbles respond to the magnetic field gradient by producing forces angled from the direction of the magnetic field gradient, and resistance of the magnetic bubble material to internal movement of the magnetic bubbles causes the material to move in response to the magnetic bubble forces.

REFERENCES:
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patent: 5717259 (1998-02-01), Scheynayder
"Formation of Normal and Hard Bubbles by Cutting Strip Domains", by Hideki Nishida, Tsutomu Kobayashi & Yutaka Sugita IEEE Transactions on Magnets, vol. MAG-9, No. 3, Sep. 1973, pp. 517-520.
"Magnetic Bubbles" by T. H. O'Dell, Halsted Press Book, John Wiley & Sons, New York-Toronto 1974 (No Month) Title Page and pp. 4-9.
"Ferromagneto Dynamics The Dynamics of Magnetic Bubbles, Domains & Domain Walls", by T. H. O'Dell, Halsted Press Book, John Wiley & Sons, New York 1981, Title Page & pp. 16-24. (No Month).
"Forced Shear Flow of Magnetic Bubble Arrays", by R. Seshadri and R. M. Westervelt, The American Physical Society, Physical Review Letters, vol. 70, No. 2, Jan. 11, 1993, pp. 234-237.
"Commensurate-Incommensurate Transitions in Magnetic Bubble Arrays with Periodic Line Pinning" by Junmin Hu & R. M. Westervelt, The American Physical Society , Physical Review B, vol. 55, No. 2, Jan. 1, 1997-11, pp. 771-774.

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