Spin-coated films of gadolinium formate for cryogenic cooling

Abstract

Continuous and homogenous films of spin-coated gadolinium formate provide a solution for efficient local cryogenic magnetic refrigeration. The films possess unprecedentedly high surface cooling power, enough to cool a 325 μm silicon wafer down to sub-K temperatures by a single demagnetization step from 2 K or even liquid He temperatures.