Surface-confined molecular coolers for cryogenics.
basic_science · Level V
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- Record sourced from PubMed, PMID 23401287.
- Also identified by DOI 10.1002/adma.201204863.
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Abstract
An excellent molecule-based cryogenic magnetic refrigerant, gadolinium acetate tetrahydrate, is here used to decorate selected portions of silicon substrate. By quantitative magnetic force microscopy for a variable applied magnetic field near liquid-helium temperature, the molecules are demonstrated to hold their magnetic properties intact, and therefore their cooling functionality, after their deposition. These results represent a step forward towards the realization of a molecule-based micro-refrigerating device at very low temperatures.