Figure 2
From: Visualizing Non-abrupt Transition of Quantum Well States at Stepped Silver Surfaces
(a) Atomically resolved STM topography (45 Å × 45 Å) with terrace edge corresponds to Ag film thickness of 30 ML and 31 ML. (b) STM height profile across the step edge. (c) A series of tunneling spectra (dI/dV) measured on top of each atom along the line AB, across the step edge. (d) The energy position of the various QW states with respect to the distance from the step edge.
