Exploring orientationally aligned anisotropic large spin molecules with unusual long-distance intermolecular ferromagnetic interactions
Exploring orientationally aligned anisotropic large spin molecules with unusual long-distance intermolecular ferromagnetic interactions
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DOI：
10.1039/c9tc00740g
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发表时间：
2019-11-07
影响因子：
6.4
通讯作者：
Suzuki, Kosuke
中科院分区：
文献类型：
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作者：
Minato, Takuo;Ohata, Yusuke;Suzuki, Kosuke
各向异性磁簇是有趣的材料，因为磁各向异性和自旋态是其磁性的重要因素。尽管在几个各向异性磁性分子的组装体中观察到了长距离磁相互作用，但这些相互作用很小并且是在极低的温度（通常低于 2 K）下观察到的。在这项工作中，为了组装定向排列的各向异性大自旋金属氧簇，我们利用各向异性空腔多金属氧酸盐模板合成了具有大自旋（S-T = 9）基态的{V3+Mn43+}簇。在定向排列的簇中，在小磁场 (>0.01 T) 下，在低于 35 K 的温度下会引发不寻常的长距离分子间铁磁相互作用。
Anisotropic magnetic clusters are interesting materials because magnetic anisotropy and spin state are important factors in their magnetic properties. Although long-distance magnetic interactions have been observed in several assemblies of anisotropic magnetic molecules, these interactions are small and observed at extremely low temperature (typically below 2 K). In this work, to assemble orientationally aligned anisotropic large spin metal oxo clusters, we managed to synthesize a {V3+Mn43+} cluster with a large-spin (S-T = 9) ground state by utilizing an anisotropic lacunary polyoxometalate template. In the orientationally aligned clusters, unusual long-distance intermolecular ferromagnetic interactions were induced below 35 K under a small magnetic field (>0.01 T).