Magnetic control device and magnetic component and memory apparatus using the same

摘要

A magnetic control device including an antiferromagnetic layer, a magnetic layer 2 placed in contact with one side of the antiferromagnetic layer 1, and an electrode placed in contact with another side of the antiferromagnetic layer 1, wherein the direction of the magnetization of the magnetic layer 2 is controlled by voltage applied between the magnetic layer 2 and the electrode 3. In particular, when an additional magnetic layer 5 is further laminated on the magnetic layer 2 placed in contact with the antiferromagnetic layer 1 via a non-magnetic layer 4, the direction of the magnetization of the controlled magnetic layer can be detected as a change in the electric resistance. Since such a magnetic control device, in principle, responds to the electric field or magnetic field, it forms a magnetic component capable of detecting an electric signal or a magnetic signal. In this case, the direction of the magnetization basically is maintained until the next signal is detected, so that such a device also can form an apparatus. Thus, a magnetic control device capable of controlling the magnetization with voltage and magnetic component and a memory apparatus using the same are provided.