Question

Can you demagnetize a neodymium magnet?

Answer 1

1. A neodymium magnet is the most widely used type of rare-earth magnet.
2. It is a permanent magnet made from an alloy of neodymium, iron, and boron to form the $N{d}_{2}F{e}_{14}B$ tetragonal crystalline structure.
3. Demagnetization is a process that means removing magnetic properties from it.
4. It can be done by heating past the curie temperature, applying a strong magnetic field, applying alternating current, or hammering the metal.
5. Therefore, by heating neodymium magnets over the curie temperature, which is above ${350}^{o}C$, and also a suitable ac field can also be used to demagnetize it at a lower temperature.
6. Hence, neodymium magnets can be demagnetized.