A Calix[4]arene 3d/4f Magnetic Cooler†
Georgios Karotsis
School of Chemistry, The University of Edinburgh, West Mains Road, Edinburgh, EH9 3JJ (UK), Fax: (+44) 131-650-6453
Search for more papers by this authorMarco Evangelisti Dr.
Instituto de Ciencia de Materiales de Aragón, CSIC - Universidad de Zaragoza, Departamento de Fisica de la Materia Condensada, 50009 Zaragoza (Spain)
Search for more papers by this authorScott J. Dalgarno Dr.
School of Engineering and Physical Sciences, Heriot-Watt University, Riccarton, Edinburgh, EH14 4AS (UK), Fax: (+44) 131-451-3180
Search for more papers by this authorEuan K. Brechin Dr.
School of Chemistry, The University of Edinburgh, West Mains Road, Edinburgh, EH9 3JJ (UK), Fax: (+44) 131-650-6453
Search for more papers by this authorGeorgios Karotsis
School of Chemistry, The University of Edinburgh, West Mains Road, Edinburgh, EH9 3JJ (UK), Fax: (+44) 131-650-6453
Search for more papers by this authorMarco Evangelisti Dr.
Instituto de Ciencia de Materiales de Aragón, CSIC - Universidad de Zaragoza, Departamento de Fisica de la Materia Condensada, 50009 Zaragoza (Spain)
Search for more papers by this authorScott J. Dalgarno Dr.
School of Engineering and Physical Sciences, Heriot-Watt University, Riccarton, Edinburgh, EH14 4AS (UK), Fax: (+44) 131-451-3180
Search for more papers by this authorEuan K. Brechin Dr.
School of Chemistry, The University of Edinburgh, West Mains Road, Edinburgh, EH9 3JJ (UK), Fax: (+44) 131-650-6453
Search for more papers by this authorWe thank the EPSRC and Heriot-Watt University for financial support of this work. M.E. acknowledges grants MAT2009-13977-C03 and CSD2007-00010, and funding from the RyC program, all from the Spanish Ministry for Science and Innovation.
Graphical Abstract
Gut gekühlt: Der erste auf Calix[4]arenen basierende 3d/4f-Cluster (siehe Bild; violett Mn, braun Gd, rot O, blau N) hat eine hohe magnetische Isotropie und viele molekulare Spinzustände, die selbst bei niedriger Temperatur besetzt sind, während sein ferromagnetisches Limit erst bei hohem angelegtem Feld erreicht wird. Diese Eigenschaften machen ihn zu einem ausgezeichneten magnetischen Kühlmittel für Niedertemperaturanwendungen.
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