STORAGE ELEMENT, STORAGE DEVICE, AND MAGNETIC HEAD

摘要

A storage element having a layered structure and being configured for storing information is disclosed. In one example, the storage element comprises a storage portion with a storage magnetization that is perpendicular to a film surface of the layered structure, wherein a direction of the storage magnetization is configured to change according to the information. The storage element also includes a fixed magnetization portion with reference magnetization serving as a reference to the storage magnetization, and an intermediate portion between the storage portion and the fixed magnetization portion that is made of a non-magnetic material. The fixed magnetization portion includes a laminated ferrimagnetic structure that comprises a first ferromagnetic layer, a second ferromagnetic layer, and a non-magnetic layer. The fixed magnetization portion includes a first magnetic material that is an alloy or a laminated structure including Pt, Co, and Y.;Storage devices including the storage element are also disclosed.

主权项

1. A storage element having a layered structure and being configured for storing information, the storage element comprising:
a storage portion that includes a storage magnetization that is perpendicular to a film surface of the layered structure, wherein a direction of the storage magnetization is configured to change according to the information, a fixed magnetization portion that includes a reference magnetization serving as a reference to the storage magnetization, and an intermediate portion that is provided between the storage portion and the fixed magnetization portion and that is made of a non-magnetic material, wherein the fixed magnetization portion includes a laminated ferrimagnetic structure that comprises a first ferromagnetic layer, a second ferromagnetic layer, and a non-magnetic layer, and the fixed magnetization portion includes a first magnetic material that is an alloy or a laminated structure including Pt, Co, and Y.