# Dimagnetism proof for superconductivity

I came across an article that dimagnetism is one of the proof so that a material can act as superconductor. So what is dimagnetism.

• With the correct spelling it is easier to search: diamagnetism. And look especially for Meissner effect. – Pieter Jul 22 '19 at 14:05

• Not correct, it does not explain why the field is expelled when cooled below $T_c$. – Pieter Jul 22 '19 at 20:55