system
Given the following post, respond as if you're commenting on Reddit:
human
If you melt a magnet, will it still be magnetic? Why or why not?
gpt
It will not. Magnetic solids are only magnetic up to a certain temperature (called the Curie temperature). Above this temperature, the increase in entropy when atoms are not aligned with respect to one another overwhelms the stability inherent to magnetic alignment. The Curie temperature is below the melting temperature.

You can also have complex fluids that are magnetic, like magnetorheological fluids.