Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode
Reexamination Certificate
2005-04-12
2005-04-12
Elms, Richard (Department: 2824)
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Having insulated electrode
C257S421000, C257S422000, C257S425000, C257S613000
Reexamination Certificate
active
06878979
ABSTRACT:
A spin switch that can be driven with voltage. This spin switch includes the following: a ferromagnetic material; a magnetic semiconductor magnetically coupled to the ferromagnetic material; an antiferromagnetic material magnetically coupled to the magnetic semiconductor; and an electrode connected to the magnetic semiconductor via an insulator. A change in the electric potential of the electrode causes the magnetic semiconductor to make a reversible transition between a ferromagnetic state and a paramagnetic state. When the magnetic semiconductor is changed to the ferromagnetic state, the ferromagnetic material is magnetized in a predetermined direction due to the magnetic coupling with the magnetic semiconductor.
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Hiramoto Masayoshi
Matsukawa Nozomu
Odagawa Akihiro
Satomi Mitsuo
Sugita Yasunari
Elms Richard
Matsushita Electric - Industrial Co., Ltd.
Menz Douglas
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