Meissner Effect

The Meissner effect is an expulsion of a magnetic field from a superconductor during its transition to the superconducting state. The German physicists Walther Meissner and Robert Ochsenfeld discovered the phenomenon in 1933 by measuring the magnetic field distribution outside superconducting tin and lead samples. The samples, in the presence of an applied magnetic field, were cooled below their superconducting transition temperature. Below the transition temperature the samples cancelled nearly all interior magnetic fields. They detected this effect only indirectly; because the magnetic flux is conserved by a superconductor, when the interior field decreased, the exterior field increased. The experiment demonstrated for the first time that superconductors were more than just perfect conductors and provided a uniquely defining property of the superconducting state.

Read more about Meissner EffectExplanation, Perfect Diamagnetism, Consequences, Paradigm For The Higgs Mechanism

Other articles related to "effect, meissner effect":

Dual Superconductor Model
... In a dual superconductor an analogous effect occurs through the condensation of magnetic charges (also called magnetic monopoles) ... can be understood as a result of the dual to the Meissner effect ... The Meissner effect says that a superconducting metal will try to expel magnetic field lines from its interior ...
Superconductivity - Elementary Properties of Superconductors - Meissner Effect
... The Meissner effect does not cause the field to be completely ejected but instead the field penetrates the superconductor but only to a very small distance, characterized by a parameter λ, called the London ... The Meissner effect is a defining characteristic of superconductivity ... The Meissner effect is sometimes confused with the kind of diamagnetism one would expect in a perfect electrical conductor according to Lenz's law, when a changing magnetic field is applied to a conductor, it ...
Meissner Effect - Paradigm For The Higgs Mechanism
... The Meissner effect of superconductivity serves as an important paradigm for the generation mechanism of a mass M (i.e ...

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