Magnetic memory device
AssigneeKabushiki Kaisha Toshiba
InventorsKatsuhiko KOUI, Hiroaki Yoda, Tomoaki Inokuchi, Naoharu Shimomura, Hideyuki Sugiyama
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Abstract
A magnetic memory device includes a conductive member, a stacked body, and a controller. The stacked body includes a first magnetic layer, a second magnetic layer provided between the conductive member and the first magnetic layer, and a third magnetic layer stacked with the first magnetic layer and the second magnetic layer. The controller causes a current to flow in the conductive member. The controller causes a current to flow between the conductive member and the stacked body. The controller is able to identify three or more levels of an electrical resistance value of the stacked body.
Claims15
A magnetic memory device, comprising:
- a conductive member;
- a stacked body;
- and
- a controller,
- the stacked body including
- a first magnetic layer,
- a second magnetic layer provided between the conductive member and the first magnetic layer, and
- a third magnetic layer stacked with the first magnetic layer and the second magnetic layer,
- the controller causing a current to flow in the conductive member, causing a current to flow between the conductive member and the stacked body, and being able to identify three or more levels of an electrical resistance value of the stacked body.
A magnetic memory device, comprising:
- a conductive member;
- and
- a stacked body connected to the conductive member,
- the stacked body including
- a first magnetic layer including at least one type of metal selected from the group consisting of iron, cobalt, and nickel,
- a second magnetic layer including at least one type of metal selected from the group consisting of iron, cobalt, and nickel and being provided between the conductive member and the first magnetic layer, and
- a third magnetic layer stacked with the first magnetic layer and the second magnetic layer.
Dependencies are inferred from the claim text.