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arXiv · 1212.1880

Surface-confined molecular coolers for cryogenics

Giulia Lorusso·Mark Jenkins·Pablo Gonzalez-Monje·Ana Arauzo·Javier Sese·Daniel Ruiz-Molina·Olivier Roubeau·Marco Evangelisti
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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 variable applied magnetic field near liquid-helium temperature, we demonstrate that the molecules hold intact their magnetic properties, and therefore their cooling functionality, after their deposition. Our result represents a step forward towards the realization of a molecule-based microrefrigerating device for very low temperatures.

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Giulia Lorusso, Mark Jenkins, Pablo Gonzalez-Monje, Ana Arauzo, Javier Sese, Daniel Ruiz-Molina, Olivier Roubeau, Marco Evangelisti. 2012-12-09. Surface-confined molecular coolers for cryogenics. https://doi.org/10.1002/adma.201204863

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