Spin-polarised charge-carrier device
AssigneeHitachi, Ltd.
InventorsJoerg Wunderlich, Tomas Jungwirth, Andrew Irvine, Jairo Sinova
Life of this patent
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Abstract
A device comprising a channel for charge carriers comprising non-ferromagnetic semiconducting in which charge carriers exhibit spin-orbit coupling, a region of semiconducting material of opposite conductivity type to the channel and configured so as to form a junction with the channel for injecting spin-polarized charge carriers into an end of the channel and at least one lead connected to the channel for measuring a transverse voltage across the channel.
Claims25
A device comprising:
- a channel for charge carriers comprising non-ferromagnetic semiconducting material in which charge carriers exhibit spin-orbit coupling;
- a region of semiconducting material of opposite conductivity type to the channel and configured so as to form a junction with the channel for injecting spin-polarised charge carriers into an end of the channel;
- and
- at least one lead connected to the channel for measuring a transverse voltage across the channel.
A method of operating a device comprising a channel for charge carriers comprising non-ferromagnetic semiconducting material in which charge carriers exhibit spin-orbit coupling, a region of semiconducting material of opposite conductivity type to the channel and configured so as to form a junction with the channel for injecting spin-polarised charge carriers into an end of the channel and at least one lead connected to the channel for measuring a transverse voltage across the channel, the method comprising:
- illuminating the junction with light;
- and
- measuring bias(es) at the lead(s).
A method of fabricating a device, the method comprising:
- providing a channel for charge carriers comprising non-ferromagnetic semiconducting material in which charge carriers exhibit spin-orbit coupling,
- providing a region of semiconducting material of opposite conductivity type to the channel and configured so as to form a junction with the channel for injecting spin-polarised charge carriers into an end of the channel and
- providing at least one lead connected to the channel for measuring a transverse voltage across the channel.
Dependencies are inferred from the claim text.