Chapter 21, Problem 21.13QAP

Interpretation Introduction

Interpretation:

The current on moving the tip in 0.10 nm steps from 0.40 nm to 1.50 nm should be calculated.

Concept introduction:

The magnitude of the tunneling current I_t is given by,

$I_t=V{e}^{-cd}$

V − bias voltage

C −constant

d − distance between the probe and the surface