Figure 1: Pb nanoclusters constructed by successive atom manipulations.
From: Room-temperature-concerted switch made of a binary atom cluster
(a–f) STM topographic images of typical Pb1–Pb6 clusters assembled in a faulted HUC (dashed triangles) of the Si(111)-(7 × 7) surface acquired at It=20 pA. Sample biases were set at Vs=−1.0 V (left) and Vs=+1.0 V (right). Image size 3.0 by 5.0 nm.
