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arXiv 1601.06649cond-mat.mes-hall
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可视化分子磁体中改进的自旋耦合

Visualizing improved spin coupling in molecular magnets

Judith Donner, Jan-Philipp Broschinski, Bastian Feldscher, Anja Stammler, Hartmut Bögge, Thorsten Glaser, Daniel Wegner

摘要:

在分子电子学框架中基于单分子磁体构建功能器件的关键是能够在表面上沉积和研究这些分子,因为分子的结构,电子和磁性特性可以在吸附时显着改变。我们已经使用了亚分子分辨率的扫描隧道显微镜探测两个不同的合理设计的单分子磁体构建块内的局部相互作用。对单分子光谱图的仔细分析表明,电子性质敏感地依赖于分子结构,因此即使很小的变化也可以大大增强或减少分子内的自旋耦合。由于它们的平面几何形状,这些分子是理想的模型系统,通过扫描探针技术研究表面支撑的配合物的分子磁性。

英文摘要:

A key to building functional devices on the basis of single molecule magnets in the framework of molecular electronics is the ability to deposit and study these molecules on a surface, because the structural, electronic and magnetic properties of molecules can significantly change upon adsorption. We have used the submolecular resolution of a scanning tunneling microscope to probe the local interactions within two different rationally designed single-molecule-magnet building blocks. A careful analysis of single-molecule spectroscopic maps reveals that the electronic properties are sensitively dependent on the molecular structure so that even small changes can drastically enhance or reduce the intramolecular spin coupling. Due to their planar geometry, these molecules are ideal model systems to study molecular magnetism of surface-supported complexes via scanning probe techniques.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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