Magnetoresistance effect material, process for producing the sam

Details Magnetoresistance effect material, process for producing the sam Magnetoresistance effect material, process for producing the sam

1997-01-06

1998-11-17

Sheehan, John

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148678, 148686, H01F 100

Patent

active

058370684

ABSTRACT:
A bulk magnetoresistance effect material of a composition represented by the general formula: T.sub.100-A M.sub.A (wherein T is at least one element selected between Cu and Au; M is at least one element selected from the group consisting of Co, Fe, and Ni; and A is in the range: 1.ltoreq.A.ltoreq.50 by atomic percent) is prepared by casting a molten mixture of the above composition, and subjecting the resulting casting to homogenization and further to heat treatment. The bulk magnetoresistance effect material is high in the rate of change in the electrical resistance thereof, i.e., shows a large magnetoresistive effect and can be obtained in such bulk form in arbitrary shapes adaptable for various uses. Using the material, various types of magnetoresistive elements are obtained.

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