Meissner effect


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Related to Meissner effect: London equations, Cooper pairs

Meiss·ner effect

 (mīs′nər)
n.
The effect whereby magnetic fields are excluded from a superconductor's interior if the superconductor is below a critical temperature, since introducing a magnetic field immediately creates electric currents in the superconductor that cancel the magnetic field. The Meissner effect is responsible for the diamagnetic properties of superconductors.

[After Fritz Walther Meissner (1882-1974), German physicist who discovered it in collaboration with Robert Ochsenfeld (1901-1993), German physicist.]

Meissner effect

(ˈmaɪsnə)
n
(General Physics) physics the phenomenon in which magnetic flux is excluded from a substance when it is in a superconducting state, except for a thin layer at the surface
[C20: named after Fritz Walther Meissner (1882–1974), German physicist]
References in periodicals archive ?
00053 kelvins (about -273[degrees] Celsius), the researchers observed a hallmark of superconductivity known as the Meissner effect, in which the superconductor expunges magnetic fields.
Among the achievements they describe are investigations of the spectral distributions of the emission of black bodies that laid the experimental foundation for Max Planck's 1900 radiation law, the discovery of the Meissner effect in superconductors, the discovery of the element rhenium, and contributions to knowledge about radioactivity.
In this study, a class of 20 HSC Physics students were introduced to a teaching model that incorporated active learning principles with the watching of a video that explored the Meissner Effect and superconductors.
They are to use gaseous helium at 4K to keep a 20K (Tc) superconductor cool, but the Meissner effect means that any magnetic field generated will reduce that 20K Tc, let alone that the helium warms up as it cools the magnetic materials, and superconductor quench has to be avoided.
The energy (stiffness) of hedge boson force field can be determined by the penetration of boson force field into hedge boson force field as expressed by the London equation for the Meissner effect
This effect is henceforth referred to as the Meissner effect.
The researchers report that at temperatures as high as 203 kelvins, the samples expelled magnetic fields, exhibiting what's known as the Meissner effect.
Among the traits of superconducting materials that the tubes exhibited was the so-called Meissner effect, in which the material expels magnetic fields, says Sheng.
This behavior is the basis for the Meissner effect, which allows a superconductor to levitate above a magnet.
National Laboratory used one of the new materials to construct a simple, electrical motor based on the property that superconductors repel magnets -- a phenomenon known as the Meissner effect.
Yes, they intend it to be superconducting, but no, they do not intend to levitate many tons of magnet by the Meissner effect.