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It commemorates the Theory of Superconductivity developed here by John Bardeen and his students, for which they won a Nobel Prize for Physics in 1972. Microscopic theory of superconductivity In physics , the Bardeen–Cooper–Schrieffer ( BCS ) theory (named after John Bardeen , Leon Cooper , and John Robert Schrieffer ) is the first ...
In physics, Ginzburg–Landau theory, often called Landau–Ginzburg theory, named after Vitaly Ginzburg and Lev Landau, is a mathematical physical theory used to describe superconductivity. In its initial form, it was postulated as a phenomenological model which could describe type-I superconductors without examining their microscopic properties.
The Meissner superconductivity effect serves as an important paradigm for the generation mechanism of a mass M (i.e., a reciprocal range, := / where h is the Planck constant and c is the speed of light) for a gauge field.
Superconductivity is a set of physical properties observed in superconductors: ... Introduction to Superconductivity (2nd ed.). Dover Books. ISBN ...
The table below shows some of the parameters of common superconductors.X:Y means material X doped with element Y, T C is the highest reported transition temperature in kelvins and H C is a critical magnetic field in tesla.
There are two London equations when expressed in terms of measurable fields: =, =. Here is the (superconducting) current density, E and B are respectively the electric and magnetic fields within the superconductor, is the charge of an electron or proton, is electron mass, and is a phenomenological constant loosely associated with a number density of superconducting carriers.
Type I superconductors: those having just one critical field (H c) and changing abruptly from one state to the other when it is reached.; Type II superconductors: having two critical fields, H c1 and H c2, being a perfect superconductor under the lower critical field (H c1) and leaving completely the superconducting state to a normally conducting state above the upper critical field (H c2 ...
Calculated magnetization curve for a superconducting slab, based on Bean's model. The superconducting slab is initially at H = 0. Increasing H to critical field H* causes the blue curve; dropping H back to 0 and reversing direction to increase it to -H* causes the green curve; dropping H back to 0 again and increase H to H* causes the orange curve.