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.
@article{arxiv.1212.1880,
title = {Surface-confined molecular coolers for cryogenics},
author = {Giulia Lorusso and Mark Jenkins and Pablo Gonzalez-Monje and Ana Arauzo and Javier Sese and Daniel Ruiz-Molina and Olivier Roubeau and Marco Evangelisti},
journal= {arXiv preprint arXiv:1212.1880},
year = {2013}
}
Comments
16 pages, 4+1 figures, S.I. available from authors