Figure 1 | Scientific Reports

Figure 1

From: Moiré Superstructure and Dimensional Crossover of 2D Electronic States on Nanoscale Lead Quantum Films

Figure 1

STM topography of Pb islands on top of a cleaved IrTe2 substrate at 4.3 K. (A) A typical cleaved IrTe2 surface shows hexagonal (H) and stripe (S) domains coexisting. (B) 2 ML and 3 ML Pb films on hexagonal domains. (C) Pb islands with different heights on a wide stripe domain. The thickness of each Pb island is indicated where a single layer height is about 0.3 nm. (D) and (E) Different Moiré superstructures are shown on the atomically resolved Pb islands with their unitcells marked. Tunneling current and bias are 1 nA and 20 mV, respectively. (F) and (G) The FFT of the STM images in (D) and (E), respectively. The 1×1 Bragg features are indicated by arrows and the other spots are the satellites due to Moiré superstructures.

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