MAGNETIC MEMORY DEVICE USING PERPENDICULAR MAGNETIC ANISOTOPY

摘要

PURPOSE: A magnetic memory device is provided to improve magnetic domain moving efficiency by a current by maintaining vertical magnetism in a thick magnetic layer. CONSTITUTION: A magnetic memory device includes a non-magnetic layer(100a,100b), a first magnetic layer(110a,110b), and a second magnetic layer(120). A first magnetic layer is formed between nonmagnetic layers. A second magnetic layer is formed between the first magnetic layers. A saturated magnetization value of the second magnetic layer is below the saturated magnetization value of the first magnetic layer.