Which outcome arises when using Scanning Tunneling Microscopy (STM) on a material with varied oxide layers?

💡 Explanation

When STM is used on materials with varying oxide layers, fluctuations appear because of quantum tunneling, whose probability exponentially depends on the width of the oxide barrier, producing current spikes from enhanced local tunneling. Therefore current spikes result, rather than uniform maps, wave interference, or species identification which rely on different underlying mechanisms.

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