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STM AND STS STUDY OF ENDOHEDRAL METALLOFULLERENES ADSORBED ON Si(111)-(7x7) SURFACES

机译:吸附在Si(111)-(7x7)表面上的内酚金属富勒烯的STM和STS研究

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Scanning tunneling microscopy (STM) and scanning tunneling spectroscopy (STS) of Dy@C_(82) and Dy@C_(60) adsorbed on Si(111)-(7x7) surface have been measured at room temperature. The Dy@C_(82) molecules in the first layer are randomly adsorbed on Si(111)-(7x7) surface, and the motion of the molecules freezes even at room temperature. No second layer islands are observed before the completion of the first layer. The band gap for Dy@C_(82) molecule in the first layer is estimated to be 0.1 eV by STS. The STM image reveals that Dy@C_(60) molecule is nearly spherical.
机译:在室温下测量了吸附在Si(111)-(7x7)表面上的Dy @ C_(82)和Dy @ C_(60)的扫描隧道显微镜(STM)和扫描隧道光谱(STS)。第一层中的Dy @ C_(82)分子随机吸附在Si(111)-(7x7)表面上,即使在室温下,分子的运动也会冻结。在第一层完成之前没有观察到第二层岛。通过STS,第一层中Dy @ C_(82)分子的带隙估计为0.1 eV。 STM图像显示Dy @ C_(60)分子接近球形。

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