Magnetic hysteresis is demonstrated for monolayers of the single-molecule magnet (SMM) Dy2 ScN@C80 deposited on Au(111), Ag(100), and MgO|Ag(100) surfaces by vacuum sublimation. The topography and electronic structure of Dy2 ScN@C80 adsorbed on Au(111) were studied by STM. X-ray magnetic CD studies show that the Dy2 ScN@C80 monolayers exhibit similarly broad magnetic hysteresis independent on the substrate used, but the orientation of the Dy2 ScN cluster depends strongly on the surface. DFT calculations show that the extent of the electronic interaction of the fullerene molecules with the surface is increasing dramatically from MgO to Au(111) and Ag(100). However, the charge redistribution at the fullerene-surface interface is fully absorbed by the carbon cage, leaving the state of the endohedral cluster intact. This Faraday cage effect of the fullerene preserves the magnetic bistability of fullerene-SMMs on conducting substrates and facilitates their application in molecular spintronics.

中文翻译：

---

金属和绝缘体上单分子磁体 Dy2 ScN@C80 的单层与基底无关的磁双稳定性。


通过真空升华沉积在 Au(111)、Ag(100) 和 MgO|Ag(100) 表面上的单层单分子磁体 (SMM) Dy2 ScN@C80 证明了磁滞现象。利用STM研究了Au(111)上吸附的Dy2 ScN@C80的形貌和电子结构。 X 射线磁圆二色性研究表明，Dy2 ScN@C80 单层表现出类似的广泛磁滞，与所使用的基材无关，但 Dy2 ScN 簇的方向强烈依赖于表面。 DFT计算表明，富勒烯分子与表面的电子相互作用程度从MgO到Au(111)和Ag(100)急剧增加。然而，富勒烯-表面界面处的电荷重新分布被碳笼完全吸收，使得内嵌簇的状态完好无损。富勒烯的法拉第笼效应保留了富勒烯-SMM 在导电基底上的磁双稳定性，并促进了它们在分子自旋电子学中的应用。