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Hi John

""I don't claim any real understanding of the subject, but 'near superconductivity' is a reasonable term, in Jack's case.""JC

The usage of that term is arguable..None of the superconductor theorists trying to develop the most advanced supers in the world today will use that term..because above Tc, there is none.

For Nb3Sn supers, it is possible to see a blurred transition at about 12Kelvin, but that is due to the grain size of the precurser Nb6Sn5 before the reaction has finished, converting all the free Niobium with the Nb6Sn into Nb3Sn.

But, above any critical temp, be it Ti, Tin, Magdibromide, bisco, yibco....none of the best scientists in the world use the term "near superconductivity". Because they find nothing in support of it..they should know...they are making the supers...

Cheers, John


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