Quantum Tunneling Across a Square Barrier

[div4200]

Homework Statement

Two copper conducting wires are separated by an insulating oxide layer. This layer acts as a square
barrier of height 10 eV. Estimate the transmission coefficient for penetration by 7 eV electrons (a) if the
layer thickness if 5 nm and (b) if the layer thickness is 1 nm

Homework Equations

I don't know. That is the problem.

The Attempt at a Solution

I don't even know where to start. I'm not asking for someone to do the problem for me. I just want a hint in the right direction. Thanks a lot!

 

[diazona]

Well, for starters, what do you know (or can look up) about tunneling? Do you know what it is? Do you know any equations that apply to it?

 

[div4200]

I just figured it out actually. My problem was that I was using an equation in my textbook with the wrong values. Thanks!