Patent ID: 6999288

Claim:
A magnetic memory device comprising: a magnetoresistive effect element designed such that said magnetoresistive effect element includes a ferromagnetic tunnel junction formed between a pair of ferromagnetic layers across a tunnel barrier layer to cause a current to flow in the direction perpendicular to the film plan; and word lines and bit lines sandwiching said magnetoresistive effect element in the thickness direction, wherein, said magnetic memory device is characterized in that one of said ferromagnetic layers in a magnetization fixed layer and the other ferromagnetic layer is a magnetization free layer, said magnetization free layer has a normalized resistance ranging from 2000 Ωnm 2 to 10000 Ωnm 2 where a product of a specific resistance obtained when a current flows to the film thickness direction and a film thickness is defined as said normalized resistance, and said magnetization fixed layer comprises two layers of fixed magnetization with a nonmagnetic conductive layer there between.