Patent ID: 8829631

Claim:
A memory element, comprising: a memory layer that has a magnetization perpendicular to a film face and a magnetization direction thereof varies corresponding to information, wherein the memory layer includes a ferromagnetic material that includes Co—Fe—B; a magnetization-fixed layer that has a magnetization that is perpendicular to the film face and becomes a reference of the information stored in the memory layer, wherein the magnetization-fixed layer includes only a single ferromagnetic layer; and an insulating layer that is provided between the memory layer and the magnetization-fixed layer and is formed of a non-magnetic layer, wherein an electron that is spin-polarized is injected in a lamination direction of a layered structure having the memory layer, the insulating layer, and the magnetization-fixed layer, and thereby the magnetization direction varies and a recording of information is performed with respect to the memory layer, wherein each one of the layers in the memory element is free of a magnetization parallel to the film face, and wherein a magnitude of an effective diamagnetic field which the memory layer receives is smaller than a saturated magnetization amount of the memory layer.