Patent ID: 7332781

Claim:
A magnetic memory having memory points formed of a magnetic tunnel junction ( 60 ), comprising: a locked magnetic layer ( 61 ) having a rigid magnetization; a free magnetic layer ( 63 ) having a magnetization that can be inverted; an insulating layer ( 62 ), interposed between the free layer ( 63 ) and the locked layer ( 61 ) and in contact with these two layers; and write circuitry for sending an electric current in a selected one of the memory points to be written into, said current being spin-polarized by the locked layer ( 61 ), wherein the free layer ( 63 ) is made of an amorphous or nanocrystallized alloy based on a rare earth and a transition metal, the magnetic order of said alloy being of ferrimagnetic type, said free layer ( 63 ) having a substantially planar magnetization.