期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 53, 期 47, 页码 12966-12970出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201407799
关键词
ab initio calculations; anisotropy barriers; ferromagnetic interactions; magnetic properties; Mossbauer spectroscopy; single-molecule magnet
资金
- 973 Project [2012CB821704, 2014CB845602]
- NSFC [91122032, 21121061, 21371183]
- NSF of Guangdong [S2013020013002]
- DFG transregional collaborative research center [SFB/TRR 88 3MET]
- KU Leuven
A record anisotropy barrier (319 cm(-1)) for all d-f complexes was observed for a unique Fe-II-Dy-III-Fe-II single-molecule magnet (SMM), which possesses two asymmetric and distorted FeII ions and one quasi-D-5h Dy-III ion. The frozen magnetization of the DyIII ion leads to the decreased FeII relaxation rates evident in the Mossbauer spectrum. Ab initio calculations suggest that tunneling is interrupted effectively thanks to the exchange doublets.
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