All Questions
Tagged with mean-free-path electrons
4
questions
5
votes
1
answer
1k
views
Why is the mean free path length of an electron in a solid described by a "universal curve"? (doesn't include electron density)
I've been experimenting with XPS (X-ray photoelectron spectroscopy) and learned that the depth from which the observed electrons originated depends on their mean free path length, which makes sense to ...
1
vote
1
answer
3k
views
Mean free path of electron in air?
I'm interested in approximating the mean free path of an electron in air. I think I'm going to need to add something more into my approximation because currently I calculate $400m$ for the mean free ...
1
vote
1
answer
695
views
The mean free path of electrons in high vacuum is 26 billion kilometres?
I used this formula to calculate the mean free path length of an electron in high vacuum.
$$\lambda = \frac{k T}{\sqrt{2}\cdot4\pi r^2 \cdot p}$$
where k is the Boltzmann konstant, T the temperature ...
0
votes
1
answer
102
views
How to interpret 'electron energy above fermi level (eV)'?
In some mean free path graphs, I see 'electron energy above Fermi level (eV)' on the x-axis See figure: What does it mean? Is it electrons kinetic energy in the material?
What happens if the graph ...