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Superconductivity and magnetism

by vincejones
Tags: magnetism, superconductivity
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vincejones
#1
May25-14, 09:12 PM
P: 2
Certain objects are able to influence the behavior of magnets when super-cooled. Does this violate Maxwells equations?
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UltrafastPED
#2
May25-14, 09:27 PM
Sci Advisor
Thanks
PF Gold
UltrafastPED's Avatar
P: 1,908
The Meissner effect: http://en.wikipedia.org/wiki/Superco...eissner_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
#3
May25-14, 10:10 PM
P: 2
I appreciate the quick response. What happens to the magnetic field of a super-cooled magnet?

DrDu
#4
May26-14, 01:19 AM
Sci Advisor
P: 3,564
Superconductivity and magnetism

Quote Quote by vincejones View Post
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
#5
May26-14, 11:37 AM
P: 660
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/Ferroma...superconductor


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