It is possible to reach a temperature close to 0.01K using the magnetic cooling technique. In this process, a strong magnetic field is imposed on a paramagnetic salt that is kept at 1 K by transferring heat to liquid helium that is boiling at very low pressure. The salt is then thermally isolated from the helium and the magnetic field is removed. Thus, the temperature of the salt decreases. Assuming that 1.5 mJ of energy is removed from the param ...
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02 Jun 2021
Expiry Date: 03 Jun 2021
