Answer to Question #102619 in Classical Mechanics for BIVEK SAH

Question

Explain with the help of a diagram the difference between a ferromagnet, an anti￾ferromagnet and a ferrite.

Answer 1

For instance, according to the diagram below, the magnetic susceptibility varies with temperature differently for ferromagnetic, antiferromagnetic materials, and ferrites. See the diagram below:

The critical temperature where materials lose their ferromagnetic properties and become paramagnetic, is called Curie point or Curie temperature $T_C$. That is, if you heat up a steel (or ferromagnetic) ball attached to a magnet above its Curie point, the attractive magnetic force will gradually decrease and the ball will tear off the magnet. After cooling, the ball will become a ferromagnet.

The critical temperature where materials lose their antiferromagnetic properties and become paramagnetic, is called Neel point or Neel temperature $T_N$. If we heat up such a material, it will first increase its properties and then will become paramagnetic.

Reference and source of the diagram:

6.8: Ferro-, Ferri- and Antiferromagnetism. (2020). Retrieved 12 February 2020, from https://chem.libretexts.org/Bookshelves/Inorganic_Chemistry/Book%3A_Introduction_to_Inorganic_Chemistry/06%3A_Metals_and_Alloys-_Structure%2C_Bonding%2C_Electronic_and_Magnetic_Properties/6.08%3A_Ferro-%2C_Ferri-_and_Antiferromagnetism