Superconducting Diodes
AssigneeRegents of the University of Minnesota
InventorsMohit GUPTA, Vlad Stefan PRIBIAG, Gino Vincent GRAZIANO
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Abstract
A device may include a Josephson junction between at least three terminals. The device is configured to exhibit a superconducting diode effect. A method may include forming a Josephson layer including three terminals defining a Josephson junction. The method may further include forming, over the Josephson layer, a gate layer including at least three gates. Each gate of the at least three gates extends across a respective channel between a respective terminal pair of the three terminals. The Josephson layer and gate layer are configured to exhibit a superconducting diode effect.
Claims20
A device comprising a Josephson junction between at least three terminals, wherein the device is configured to exhibit a superconducting diode effect.
A system comprising:
- a device comprising a Josephson junction between at least three terminals, wherein the device is configured to exhibit a superconducting diode effect;
- and
- a field generator configured to generate an out-of-plane magnetic field and tune a diode efficiency of the device.
A device comprising:
- a substrate layer;
- an epitaxial aluminum layer comprising three terminals defining a Josephson junction;
- and
- a gate layer comprising three gates,
- wherein the epitaxial aluminum layer is between the gate layer and the substrate layer such that each gate of the three gates extends across a respective channel between a respective terminal pair of the three terminals,
- wherein the device is configured to conduct a superconducting current in a first direction between two terminals of the three terminals, and
- wherein the device is configured to conduct a dissipative current in a second direction opposite the first direction between the two terminals.
A method comprising:
- forming a Josephson layer comprising at least three terminals defining a Josephson junction;
- and
- forming, over the Josephson layer, a gate layer comprising at least three gates such that each gate of the at least three gates extends across a respective channel between a respective terminal pair of the three terminals,
- wherein the Josephson layer and the gate layer are configured to exhibit a superconducting diode effect.
Dependencies are inferred from the claim text.