Kabushiki Kaisha Toshiba

Masaru Tokou

Hiroaki Yoda

Toshihiko Nagase

Tadashi Kai

Eiji Kitagawa

Tadaomi Daibou

Katsuya Nishiyama

Koji Ueda

Makoto Nagamine

Yutaka Hashimoto

Shinji Yuasa

Akio Fukushima

Koji Ando

Hitoshi Kubota

Kay Yakushiji

Taro Nagahama

A magnetoresistive element according to an embodiment includes: a first ferromagnetic layer having an axis of easy magnetization in a direction perpendicular to a film plane; a second ferromagnetic layer having an axis of easy magnetization in a direction perpendicular to a film plane; a nonmagnetic layer placed between the first ferromagnetic layer and the second ferromagnetic layer; a first interfacial magnetic layer placed between the first ferromagnetic layer and the nonmagnetic layer; and a second interfacial magnetic layer placed between the second ferromagnetic layer and the nonmagnetic layer. The first interfacial magnetic layer includes a first interfacial magnetic film, a second interfacial magnetic film placed between the first interfacial magnetic film and the nonmagnetic layer and having a different composition from that of the first interfacial magnetic film, and a first nonmagnetic film placed between the first interfacial magnetic film and the second interfacial magnetic film.

Magnetoresistive element and magnetic memory

According to one embodiment, a magnetoresistive effect element includes a first magnetic layer including perpendicular anisotropy to a film surface and an invariable magnetization direction, the first magnetic layer having a magnetic film including an element selected from a first group including Tb, Gd, and Dy and an element selected from a second group including Co and Fe, a second magnetic layer including perpendicular magnetic anisotropy to the film surface and a variable magnetization direction, and a nonmagnetic layer between the first magnetic layer and the second magnetic layer. The magnetic film includes amorphous phases and crystals whose particle sizes are 0.5 nm or more.

Magnetoresistive effect element, magnetic memory

Growing community of inventors

Yokohama, Japan

Masaru Tokou