By how much does the tunneling current through the tip of
Chapter 38, Problem 38.55(choose chapter or problem)
By how much does the tunneling current through the tip of anSTM change if the tip rises 0.020 nm from some initial heightabove a sodium surface with a work function W0 = 2.28 eV?[Hint. Let the work function (see Section 37-2) equalthe energy needed to raise the electron to the top ofthe barrier.]
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