Copper surface

STM on polished copper

A simple sheet of copper has been polished and subsequently cleaned with pure ethanol. This STM measurement was carried out under ambient conditions at a tunneling current of 1nA and an applied gap voltage of 50mV.

500x500nm image; z-range 40nm

Sub micrometer sized scratches from polishing and polycristalline platelets can be observed.

STM measurements on polished copper sheet (raw data)

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