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BEEM spectra for hot electron injection into Ag/Si(001) (dashed line) and Ag/Si(111) (solid lines) diodes with increasing Ag film thicknesses as indicated.
Percent transmission versus Ag film thickness for different substrates and tip biases as indicated. Solid lines are fits to Eq. (1), where the resulting attenuation length, and tip bias are indicated.
Hot electron attenuation length of silver versus tip bias for different substrates. The divergence is due to differences between the two substrate’s interface band structures and filtering of the elastically scattered electrons from conservation at low energies as depicted the inset.
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