The probe passes over an atom that is 05 nm tall off the

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(a) What is the probability that an electron will tunnel through a 0.50-nm air gap from a metal to a scanning tunneling microscope probe if the work function is 4.0 eV?

(b) The probe passes over an atom that is .05 nm tall off the surface. By what factor does the tunneling current increase?

Reference no: EM13627838

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