How is information recorded on the plates? Application of FSC Correctors of Koltsov's functional state in treatment..

Question: You once said that you can record information on any material. Can you also write on foil instead of magnetic rubber?
Koltsov S.V. (December 7, 2016): Not quite so. Aluminum foil, I emphasize aluminum, can only work as an amplifier, because aluminum is a paramagnet. If you take copper foil, it is generally useless for this kind of activity. And the paramagnet itself will not hold this information, that is, some more stable material is needed here. It is no coincidence that he took magnetic material. On a magnetic material, the spins of magnetic dipoles are controlled. Aluminum itself will only line up its own things, it will adapt to any magnetic field, and it will not be able to hold information on its own. Question: People do not get tired - I have seen them reloading ready-made FSCs with other information. Koltsov S. V .: I answer: this is not possible . Okoneshnikov also tried to recharge and recharge the FSC-ki, but to no avail..