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What do cryotrons consist of?

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One type of cryotron consists of a straight wire (the gate) around which a wire coil (the control coil) is wound. Kept at temperatures near absolute zero, both wires become superconductors (see low-temperature physics ; superconductivity ), but when current is passed through the coil, a magnetic field is induced that causes the gate to lose its superconductivity, thus switching off the current through it.

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Get more facts and information about cryotron from The Columbia Encyclopedia, Sixth Edition at Encyclopedia.com.

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