tunneling cryotron

tunneling cryotron

[′tən·əl·iŋ ′krī·ə‚trän] (electronics) A low-temperature current-controlled switching device that has two electrodes of superconducting material separated by an insulating film, forming a Josephson junction, and a control line whose currents generate magnetic fields that switch the device between two states characterized by the presence or absence of electrical resistance.