Photoionisation cross section
Photoionisation cross section in the context of condensed matter physics refers to the probability of a particle (usually an electron) being emitted from its electronic state.
Cross section in photoemission
The photoemission is a useful experimental method for the determination and the study of the electronic states. Sometimes the small amount of deposited material over a surface has a weak contribution to the photoemission spectra, which makes its identification very difficult. The knowledge of the cross section of a material can help to detect thin layers or 1D nanowires over a substrate. A right choice of the photon energy can enhance a small amount of material deposited over a surface, otherwise the display of the different spectra won't be possible.[1]
gollark: You can get both pretty easily if you just get a somewhat better GPU than you would for a productivity-only setup.
gollark: And I say "well" kind of loosely.
gollark: It runs surprisingly well on my laptop (i5 7200U/HD Graphics 620), though that's possibly just because of the low-res screen.
gollark: My lowish-solar-orbit communications satellite is finally in lowish solar orbit after far too much time spent waiting on the ion engine.
gollark: Well, the site is still sort of there.
See also
References
- Dallmeyer, A.; et al. (2000). "Electronic states and magnetism of monatomic Co and Cu wires". Physical Review B. 61 (8): R5133–R5136. Bibcode:2000PhRvB..61.5133D. doi:10.1103/PhysRevB.61.R5133.
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