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US 8,476,724 B2Granted
Spin wave device
AssigneeKabushiki Kaisha Toshiba
InventorsTsuyoshi Kondo, Hirofumi Morise, Shiho Nakamura
Life of this patent
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Abstract
A spin wave device comprises a metal layer, a pinned layer, a nonmagnetic layer, a free layer, an antiferromagnetic layer, a first electrode, a first insulator layer, and a second electrode. The pinned layer has a magnetization whose direction is fixed. The free layer has a magnetization whose direction is variable.
Claims12
A spin wave device comprising:
- a metal layer;
- a pinned layer provided on the metal layer in which a direction of magnetization is fixed;
- a nonmagnetic layer provided on the pinned layer;
- a free layer provided on the nonmagnetic layer in which a direction of magnetization is variable;
- an antiferromagnetic layer connected to a first part of a top surface of the free layer;
- a first electrode provided on a second part of the top surface of the free layer, wherein the second part is spaced apart from the first part;
- a first insulator layer provided on a third part of the top surface of the free layer and is prepared between the first part and the second part;
- and
- a second electrode provided on the antiferromagnetic layer.
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A spin wave device comprising:
- a metal layer;
- a first pinned layer provided on the metal layer in which a direction of magnetization is fixed;
- a nonmagnetic layer provided on the first pinned layer;
- a free layer provided on the nonmagnetic layer in which a direction of magnetization is variable;
- a multi-layered structure provided on a first part of a top surface of the free layer and the multi-layered structure comprised of an intermediate layer, a second pinned layer, and an antiferromagnetic layer stacked in this order;
- a first electrode provided on a second part of the top surface of the free layer, wherein the second part is spaced apart from the first part;
- an insulator layer provide on a third part of the top surface of the free layer and is prepared between the first part and the second part;
- and
- a second electrode provided on the multi-layered structure.
6 more elements
Dependencies are inferred from the claim text.