Superconductivity and magnetism

[vincejones]

Certain objects are able to influence the behavior of magnets when super-cooled. Does this violate Maxwells equations?

 

[UltrafastPED]

The Meissner effect: http://en.wikipedia.org/wiki/Superconductivity#Meissner_effect

Superconductivity is a quantum effect and is a property of materials.

Maxwell's equations only describe the fields; material properties must be injected via auxiliary equations.

 

[vincejones]

I appreciate the quick response. What happens to the magnetic field of a super-cooled magnet?

 

[DrDu]

I appreciate the quick response. What happens to the magnetic field of a super-cooled magnet?

Magnetic substances don't become superconductors when cooled, or at least, they loose their ferromagnetic properties when transitioning into the superconductive regime.

 

[M Quack]

There are some exotic materials where ferromagnetism and superconductivity coexist. How exactly that works seems to be subject of an open debate.

http://en.wikipedia.org/wiki/Ferromagnetic_superconductor