supercurrent flow
1Pi Josephson junction — A pi Josephson Junction is a specific instance of a Josephson Junction where the Josephson phase phi is equal to pi in the ground state, i.e. when no external currents or magnetic fields are applied to the Josephson junction. Background The… …
2Magnetic flux quantum — Values (CODATA 2006)[1] Units Φ0 2.067 833 667(52)×10−15 Wb KJ 483 597.891(12)×109 Hz/V KJ–90 483 597.9 …
3Superconductivity — is a phenomenon occurring in certain materials generally at very low temperatures, characterized by exactly zero electrical resistance and the exclusion of the interior magnetic field (the Meissner effect).The electrical resistivity of a metallic …
4Meissner effect — Diagram of the Meissner effect. Magnetic field lines, represented as arrows, are excluded from a superconductor when it is below its critical temperature. The Meissner effect is the expulsion of a magnetic field from a superconductor during its… …
5Josephson effect — Josephson junction array chip developed by NIST as a standard volt The Josephson effect is the phenomenon of supercurrent (i.e. a current that flows indefinitely long without any voltage applied) across two superconductors coupled by a weak link …
6History of superconductivity — The history of superconductivity , the property exhibited by certain substances of lacking electrical resistance at temperatures close to absolute zero, began at the end of the 19th century and culminated in Heike Kamerlingh Onnes s 1911… …
