Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2005-07-18
Appl. Phys. Lett. 87, 072504 (2005)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
4 pages, 3 figures, accepted for publication in Applied Physics Letters
Scientific paper
10.1063/1.2010604
An unusually large magnetocaloric effect for the temperature region below 10 K is found for the Fe14 molecular nanomagnet. This is to large extent caused by its extremely large spin S ground-state combined with an excess of entropy arising from the presence of low-lying excited S states. We also show that the highly symmetric Fe14 cluster core, resulting in small cluster magnetic anisotropy, enables the occurrence of long-range antiferromagnetic order below T_N=1.87 K.
Affronte Marco
Brechin Euan K.
Candini Andrea
Evangelisti Marco
Ghirri Alberto
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