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The Cryotron-A Superconductive Computer Component

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1 Author(s)
Buck, D.A. ; Division 6, Lincoln Lab., M.I.T., Lexington 73, Mass.

The study of nonlinearities in nature suitable for computer use has led to the cryotron, a device based on the destruction of superconductivity by a magnetic field. The cryotron, in its simplest form, consists of a straight piece of wire about one inch long with a single-layer control winding wound over it. Current in the control winding creates a magnetic field which causes the central wire to change from its superconducting state to its normal state. The device has current gain, that is, a small current can control a larger current; it has power gain so that cryotrons can be interconnected in logical networks as active elements. The device is also small, light, easily fabricated, and dissipates very little power.

Published in:

Proceedings of the IRE  (Volume:44 ,  Issue: 4 )