Magnetic element and process for producing the same

Details Magnetic element and process for producing the same Magnetic element and process for producing the same

1997-02-28

1999-08-03

Resan, Stevan A.

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428213, 428216, 428221, 428692, 340551, 340572, 2041922, 324252, 338 32R, 283 82, G11B 300, B32B 700

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059323108

ABSTRACT:
A magnetic element comprising a first thin film and a second thin film having a coercive force that is greater than the coercive force of the first thin film formed on a substrate. The magnetic element exhibits a continuous magnetic reversal under an applied alternating magnetic field having a magnitude that is smaller than the coercive force of the second thin film to cause said first thin film to undergo magnetic reversal. The magnetic element also exhibits a discontinuous sudden magnetic reversal under an applied alternating magnetic field having a magnitude that is greater than the coercive force of the second thin film. The configuration of the magnetic element has little effect on discontinuous magnetization response. Thus the magnetic element exhibits good magnetic characteristics even when formed in a small size.

REFERENCES:
patent: 4940966 (1990-07-01), Pettigrew et al.
patent: 4960651 (1990-10-01), Pettigrew et al.
patent: 4967185 (1990-10-01), Montean
patent: 5401584 (1995-03-01), Minasy et al.
patent: 5580664 (1996-12-01), Tsai
Journal of Applied Physics, vol. 75, No. 10, Part 10, Part 02B, May 15, 1994, pp. 6997-6999 Farrell G.P. et al: "Barkhausen Transitions in Single Layer and Bilayer Thin Permalloy Films".

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