Keio University

Tohoku University

Toroku University

Kazuya Harii

Eiji Saitoh

Kenichi Uchida

Kazuya Ando

Yosuke Kajiwara

Hideki Miyajima

Hiroyasu Nakayama

Makoto Kawabata

Kohei Sasage

The invention relates to a magnetic sensor and a magnetic memory which sense magnetic information held by a ferromagnetic body without a current flowing through the ferromagnetic body. The magnetic sensor and magnetic memory use a magnetoresistive effect generated in a current that flows through a metal layer along an interface, on at least the interface side, with a ferromagnetic dielectric layer and said metal layer being joined through said interface.

Magnetic sensor and magnetic memory

The invention relates to a method for changing spin relaxation, a method for detecting a spin current, and a spintronic device using spin relaxation, and spin relaxation is changed through injection of a spin current. A spin currentis injected into a materialin a certain spin state, so that the spin relaxation time can be controlled.

Method for changing spin relaxation, method for detecting spin current and spintronics device using spin relaxation

The invention relates to a spin current thermal conversion device and a thermoelectric conversion device, with which a spin current is thermally generated, and its concrete application is realized. A temperature gradient creating means which creates a temperature gradient in a thermal spin current generating member is provided in a thermal spin current generating member made of either a ferromagnetic member or a conductive member containing a ferromagnetic substance.

Spin current thermal conversion device and thermoelectric conversion device

The present invention relates to a magnetic ring unit and a magnetic memory device; an object of the invention is to control the direction of rotation of the magnetic flux freely and with high reproducibility in a simple structure without using a thermal process such as pinning; and a magnetic ring unit is formed of a magnetic ring in eccentric ring form where the center of the inner diameter is located at a decentered position relative to the center of the outer diameter.

Magnetic ring unit and magnetic memory device

Growing community of inventors

Miyagi, Japan

Kazuya Harii