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Q. 25

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 1175

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Short Answer

What is the probability that an electron will tunnel through a gap from a metal to a STM probe if the work function is ?

The probability is

See the step by step solution

Step by Step Solution

Step 1: Given information 

We have given,

Work function =

penetration depth =

We have to find the probability of tunneling.

Step 2: Simplify 

We know the penetration depth can be written as ,

substitute the all value

and we know the probability

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