Patent ID: 8929131
Filing Date: 2015-01-06
Classification: G11C,H01L

Abstract:
1. A magnetic memory element that has a spin valve structure including a free layer, a non-magnetic layer, and a pinned layer, the non-magnetic layer being interposed between the pinned layer and the free layer, wherein write pulses to control a combination of a magnetization of the free layer and a magnetization of the pinned layer are applied between the free layer and the pinned layer of the spin valve structure, and thus information according to the write pulses is recorded, the free layer has a three-layer structure in which a first magnetic layer, an intermediate layer, and a second magnetic layer are stacked starting from a side of the non-magnetic layer, the first magnetic layer is made of a ferromagnetic material, the intermediate layer is made of a non-magnetic material, the second magnetic layer includes an N-type ferrimagnetic material that has a magnetic compensation point T magnetization directions of the first magnetic layer and the second magnetic layer are parallel to each other at a temperature lower than the magnetic compensation point T