| 释义 |
ˈsupercurrent Physics.
[f. super- in superconductor, etc.]
An electric current flowing without dissipating energy, as in a superconductor.
[1936Nature 16 May 824/1 The assumption for the supra-conductor is, that I = Ic+ Is... That is to say, there is a third sort of current, Is, call it the supra-current.] 1940E. F. Burton et al. Phenomena Temperature Liquid Helium x. 302 We must now recognize three entirely different kinds of electric current..: (1) the displacement current in an insulator..; (2) the ordinary conduction current..; (3) the super-current. 1962New Scientist 22 Nov. 454/3 Superconductivity can also be destroyed by increasing the supercurrent itself beyond a critical value. 1966K. Mendelssohn Quest for Absolute Zero x. 242 Superfluid flow, just as a persistent supercurrent, is distinguished by zero entropy. 1980Sci. Amer. May 43/1 In the absence of a magnetic field, and with a current below a critical value, a supercurrent flows through the Josephson junction just as if the superconductor were not interrupted by the insulating barrier. |