Magnetic detecting element having free layer formed of NiFe...

Details Magnetic detecting element having free layer formed of NiFe... Magnetic detecting element having free layer formed of NiFe...

2006-02-21

2009-11-10

Renner, Craig A (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

C029S603140

Reexamination Certificate

active

07616410

ABSTRACT:
There are provided a magnetic detecting element capable of maintaining large ΔRA and of reducing magnetostriction by improving a material forming a free magnetic layer, and a method of manufacturing the same. An NiFeX alloy layer is formed in a free magnetic layer. For example, the element X is Cu. The NiFeX alloy layer formed in the free magnetic layer makes it possible to maintain large ΔRA and to more reduce the magnetostriction of the free magnetic layer, compared with a structure in which an NiFe alloy layer is formed in the free magnetic layer.

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Search Report dated Jun. 7, 2006, for corresponding British Patent Application No. 0602488.9.

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