Question

What happens when a Paramagnetic material is heated above Curie temperature?

Answer 1

1. Curie Temperature is the temperature at which ferromagnetic substances behave as paramagnetic substances or simply we can say the temperature at which certain material lose their permanent magnetism and are replaced by induced magnetism.
2. At higher temperatures, magnets become weaker, as spontaneity occurs below Curie temperature.
3. If the Ferromagnetic substances are heated above Curie temperature, their ferromagnetic substances get lost and convert to paramagnetic substances. For example - Alnico is an alloy of Al, Fe, Ni, Cu, and Co is a ferromagnetic substance.
4. However, if the substance is already paramagnetic it will not lose its properties, and no change is observed. For example Liquid Oxygen molecule, salts, and chelates of metals (Mn, Cu).