Spin tunnel transistor
AssigneeKabushiki Kaisha Toshiba
InventorsRie Sato, Koichi Mizushima
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Abstract
Some spin tunnel transistors with a larger current transmittance and a higher MR ratio are described. One of the spin tunnel transistor comprises a collector; an emitter; abase formed between the collector and the emitter, including a first ferromagnetic metal layer variable in its magnetization under an external magnetic field; a barrier layer formed between the first ferromagnetic metal layer and one of the collector and the emitter, the other of the collector and the emitter including a semiconductor crystal layer; and a transition metal silicide crystal layer between the semiconductor crystal layer and the base. The transition metal silicide crystal layer may be replaced with a palladium layer, a transition metal nitride layer, or a transition metal carbide layer.
Claims6
A spin tunnel transistor comprising:
- a collector;
- an emitter;
- a base formed between the collector and the emitter, the base comprising a first ferromagnetic metal layer variable in its magnetization under an external magnetic field;
- a barrier layer formed between the base and one of the collector and the emitter, the other of the collector and the emitter comprising a semiconductor crystal layer;
- and
- a palladium layer between the semiconductor crystal layer and the base.
Dependencies are inferred from the claim text.