期刊
INORGANIC CHEMISTRY
卷 55, 期 20, 页码 10043-10056出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.6b01353
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资金
- Methusalem grant from the Katholieke Universiteit Leuven
- INPAC grant from the Katholieke Universiteit Leuven
Lanthanide-based single-molecule magnets are leading materials for achieving magnetization blocking at the level of one molecule. In this paper,, we examine the physical requirements for efficient magnetization blocking, in single-ion complexes and identify the design principles for achieving very high magnetization blocking barriers in lanthanide-based compounds. The key condition is the preponderant covalent binding of the Ln ion to one of the ligand atoms, tremendously enhancing the axial crystal field. We also make an overview of practical schemes for the implementation of this principle. These are (1) the effective lowering Of the coordination number via displacement of the Ln ion to one of the atoms in the coordination polyhedron, (2) the design of two-coordinated complexes, and (3) the stabilization of diatomic compounds in cages and on surfaces. The last proposal is appealing in connection to spintronics applications, especially via the exploration of robust and highly anisotropic [LnX] units displaying multilevel blocking barriers of thousands of Kelvin and prospects for room temperature magnetization blocking.
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