Increased damping of magnetization in magnetic materials

Details Increased damping of magnetization in magnetic materials Increased damping of magnetization in magnetic materials

2007-03-20

2007-03-20

Sheehan, John P. (Department: 1742)

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

C148S306000, C148S310000, C148S311000, C148S312000, C148S313000, C148S315000

Reexamination Certificate

active

10195178

ABSTRACT:
In order to dampen magnetization changes in magnetic devices, such as magnetic tunnel junctions (MTJ) used in high speed Magnetic Random Access Memory (MRAM), a transition metal selected from the4dtransition metals and5dtransition metals is alloyed into the magnetic layer to be dampened. In a preferred form, a magnetic permalloy layer is alloyed with osmium (Os) in an atomic concentration of between 4% and 15% of the alloy.

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