Figure 2: Atomic structures of Pb trimers.
From: Room-temperature-concerted switch made of a binary atom cluster
(a) Topographic STM images (It=20 pA) of a Pb3 confined in a faulted HUC (dashed triangles) acquired at Vs=−1.0 V (top) and +1.0 V (bottom), respectively. (b) Calculated STM topographic images using structural model in c at Vs=−1.0 V (top) and +1.0 V (bottom), respectively. (c) Top view (top) and side view (bottom) of the proposed atomic structure of the Pb3 cluster on an Si(111)-(7 × 7) surface. (d) Topographic STM images (It=20 pA) of a metastable Pb trimer confined in a faulted HUC (dashed triangles) acquired at Vs=−1.0 V (top) and +1.0 V (bottom), respectively. (e) STM topographic images calculated using the structural model in f at Vs=−1.0 V (top) and +1.0 V (bottom), respectively. (f) Top view (top) and side view (bottom) of the proposed atomic structure of the cluster on the Si(111)-(7 × 7) surface.
