2005/07/18 by Marco Evangelisti, Andrea Candini, Alberto Ghirri +3
Chemistry · Materials Science · Physics and Astronomy · #Inorganic Chemistry and Materials #Magnetic and transport properties of perovskites and related materials #Magnetism in coordination complexes #cond-mat.mes-hall #cond-mat.mtrl-sci
paper · pdf · doi:10.1063/1.2010604
published as Appl. Phys. Lett. 87, 072504 (2005) · 4 pages, 3 figures, accepted for publication in Applied Physics Letters
arxiv created 2005/07/18 · openalex publication_date 2005/08/08 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/01
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 TN=1.87K.