Growth of a dense gadolinium metal–organic framework on oxide-free silicon for cryogenic local refrigeration

Abstract

Films of gadolinium formate are grown on oxide-free Si with carboxylic-acid terminated monolayers. A single adiabatic demagnetization of the films has the refrigeration potential to cool a 2 μm Si membrane from 5 to below 1 K, making the reported approach an alternative for local cryogenic cooling.