Magnetic cryocooling with Gd3+ centers in a light and compact framework

G. Lorusso; J. W. Sharples; E. Palacios; O. Roubeau; E. K. Brechin; R. Sessoli; A. Rossin; F. Tuna; E. J. L. McInnes; D. Collison; M. Evangelisti

doi:10.1002/adma.201301997

Magnetic cryocooling with Gd3+ centers in a light and compact framework

Materials Science 2013-07-08 v1

Authors: G. Lorusso , J. W. Sharples , E. Palacios , O. Roubeau , E. K. Brechin , R. Sessoli , A. Rossin , F. Tuna , E. J. L. McInnes , D. Collison , M. Evangelisti

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Abstract

The magnetocaloric effect of gadolinium formate, Gd(OOCH)3, is experimentally determined down to sub-Kelvin temperatures by direct and indirect methods. This 3D metal-organic framework material is characterized by a relatively compact crystal lattice of weakly interacting Gd3+ spin centers interconnected via light formate ligands, overall providing a remarkably large magnetic:non-magnetic elemental weight ratio. The resulting volumetric magnetic entropy change is decidedly superior in Gd(OOCH)3 than in the best known magnetic refrigerant materials for liquid-helium temperatures and low-moderate applied fields.

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@article{arxiv.1212.2877,
  title  = {Magnetic cryocooling with Gd3+ centers in a light and compact framework},
  author = {G. Lorusso and J. W. Sharples and E. Palacios and O. Roubeau and E. K. Brechin and R. Sessoli and A. Rossin and F. Tuna and E. J. L. McInnes and D. Collison and M. Evangelisti},
  journal= {arXiv preprint arXiv:1212.2877},
  year   = {2013}
}

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11 pages, 4 figures

Magnetic cryocooling with Gd3+ centers in a light and compact framework

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