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by pygy_ 5656 days ago
The Meisner transition is the transition to a state where the Meisner effect is observed.

The author also reports a "resistive transition", 1°C lower than the Meisner transition. He claims that this signs the superconductivity of the material and confirms the origin of the magnetic transition.

> Is (Tl4Pb)Ba2MgCu8O13+ a ceramic compound?

Most probably, yes. See http://www.superconductors.org/type2.htm.