- #1
Storm Butler
- 78
- 0
Homework Statement
Suppose that an STM scans a surface at a distance of a=1.000nm. Take the height of the potential barrier to be U°-E=2.00 eV. If the STM tip movies away from the surface by 2.00%, estimate the percentage change in the tunneling current.
Homework Equations
The Attempt at a Solution
I honestly don't know how to do this. I've been reading over our chapter on tunnelling and there doesn't seem to be anything related to this problem.