If I were to take a permanent magnet and hold a piece of, say iron, a fixed distance away there would be constant attractive force generated between the two bodies. If I were then to cool the magnet down towards absolute zero, but keep the temperature of the iron constant, what changes would I expect to see in the force between the two materials? Does anyone know of this experiment being performed? If so, what were the results? Any information would be much appreciated. Oh, and “hi” to all on these forums, this is my first post!.