Long-range interactions mediated by screening in a 2D electron gaz:
Tracing Cu monomer diffusion on Cu(111) with STM.
Substrate temperature: T = 13.5 K
Time between subsequent frames: t = 2 min
Coverage: θ = 1.4·10-3 ML
Tunneling parameters:
V t = 100 mV
I t = 0.1 nA