Does ARPES Only Show Fermi Surface of a Structure?

Click For Summary
SUMMARY

Angle-resolved photoemission spectroscopy (ARPES) is a technique that provides energy dispersion as a function of momentum (k). While it can show the full band structure, it is often discussed in the context of mapping the Fermi surface by identifying k-values where the band crosses the Fermi energy. This dual capability allows researchers to analyze both the Fermi surface and the overall electronic structure of materials. Proper analysis techniques are essential for extracting comprehensive information from ARPES data.

PREREQUISITES
  • Understanding of angle-resolved photoemission spectroscopy (ARPES)
  • Familiarity with band structure concepts
  • Knowledge of Fermi energy and its significance in solid-state physics
  • Basic skills in k-space analysis
NEXT STEPS
  • Research advanced ARPES analysis techniques for full band structure interpretation
  • Learn about Fermi surface mapping methodologies in ARPES
  • Explore the implications of Fermi energy in electronic properties of materials
  • Study the relationship between k-space and electronic band structure
USEFUL FOR

Physicists, materials scientists, and researchers in condensed matter physics who are interested in electronic structure analysis and the application of ARPES in material characterization.

aaaa202
Messages
1,144
Reaction score
2
I am reading about angle-resovled-photoemission-spectroscopy (ARPES). It seems that it is a technique that gives the energy dispersion as a function of the momentum k. However in all talks about it, it seems to be a technique that gives us the fermi surface of the given structure. I don't understand this. Does it not give us the full band structure and not necessarily just the energy diagram for the highest occupied energy states?
 
Physics news on Phys.org
aaaa202 said:
I am reading about angle-resovled-photoemission-spectroscopy (ARPES). It seems that it is a technique that gives the energy dispersion as a function of the momentum k. However in all talks about it, it seems to be a technique that gives us the fermi surface of the given structure. I don't understand this. Does it not give us the full band structure and not necessarily just the energy diagram for the highest occupied energy states?

It does, but depending on how you analyze it, it can also map the Fermi surface. You simply look for the k-values where the band crosses the Fermi energy. Then in k-space, you map these values, and voila, you have the Fermi surface.

Zz.
 

Similar threads

  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 1 ·
Replies
1
Views
4K
  • · Replies 21 ·
Replies
21
Views
81K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 4 ·
Replies
4
Views
4K
  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 5 ·
Replies
5
Views
3K