Article comprising a manganite magnetoresistive element and magn

Details Article comprising a manganite magnetoresistive element and magn Article comprising a manganite magnetoresistive element and magn

1996-06-27

1998-06-16

Snow, Walter E.

Electricity: measuring and testing

Magnetic

Magnetometers

338 32R, 360113, 257422, G01R 3309, G11B 539, H01L 4308

Patent

active

057676739

ABSTRACT:
Magnetoresistive elements according to this invention comprise magnetically soft material in close proximity to the magnetoresistive material, exemplarily a perovskite manganite. The combination results in magnetic field "amplification", with large resistance changes attainable at relatively low applied fields. The invention exemplarily is embodied in magnetic sensors, e.g., magnetoresistive read/write heads.

REFERENCES:
patent: 4024489 (1977-05-01), Bajorek et al.
patent: 4827218 (1989-05-01), Meunier et al.
"Giant negative Magnetoresistance in Perovskitelike Lad.sub.2/3 BA.sub.1/3 MnOd.sub.x Ferromagnetic Films", R. von Helmolt et. al., Physical Review Letters, vol. 71, No. 14, 4 Oct. 1993, pp. 2331-2333.
"Thousandfold Change in Resistivity in Magnetoresistive La-Ca-Mn-O Films", S. Jin et. al., Science, vol. 264, 15 Apr. 1994, pp. 413-415.
"Giant Magnetresistance in Pyrochlore Tl.sub.2-x In.sub.x Mn.sub.2 O.sub.7 ", by S-W. Cheong et al., Solid State Communications, vol. 98, No. 2, pp. 163-166, 1996, pp. 163-166.
"Introduction to Magnetic Materials", by B.D. Cullity, Addison-Wesley, 1972, pp. 18-21.
"Lattice Effects on the Magnetoresistance in Doped LaMnO.sub.3, " by H. Y. Hwang et al., Physical Review Letters, vol. 75, No. 5, 31 July 1995, pp. 914-917.

Affiliated with

Also associated with

Rating

Article comprising a manganite magnetoresistive element and magn does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Article comprising a manganite magnetoresistive element and magn, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Article comprising a manganite magnetoresistive element and magn will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1729874