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Cleaved thin-film probes for scanning tunneling microscopy

机译:用于扫描隧道显微镜的切割薄膜探针

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We introduce an alternative type of probe for scanning tunneling microscopy (STM). Instead of using a needle-like tip made from a piece of metallic wire, a sharp-edged cleaved insulating substrate, which is initially covered by a thin conductive film, is used. The sharp tip is formed at the intersection of the two cleaved sides. Using this approach a variety of materials for STM probes can be used, and functionalization of STM probes is possible. The working principle of different probes made of metallic (Pt, Co, and CoB), indium-tin oxide, as well as Cu/Pt and Co/Pt multilayer films are demonstrated by STM imaging of clean Cu(001) and Cu(111) surfaces as well as the epitaxial Co clusters on Cu(111).
机译:我们介绍一种替代类型的探头,用于扫描隧道显微镜(STM)。 不使用由一块金属线制成的针状尖端,而不是使用最初被薄导电膜覆盖的尖锐的切割绝缘基板。 尖锐的尖端形成在两个切割侧面的交叉处。 使用这种方法可以使用各种用于STM探针的材料,并且可以使用STM探针的功能化。 通过清洁Cu(001)和Cu的STM成像证明了由金属(Pt,Co和COB),氧化铟锡以及Cu / Pt和Co / Pt多层膜制成的不同探针的工作原理(111)(111 )表面以及Cu(111)上的外延Co簇。

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