Photoionisation cross section


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 enhanced a small amount of material deposited over a surface, otherwise the display of the different spectra won't be possible.ref|prl

ee also

*ARPES
*Synchrotron radiation
*Cross section (physics)
*absorption cross section
*Nuclear cross section

References

#A. Dallmeyer and "al". Phys. Rev. B 61, R5133 - R5136 (2000)

External links

* [http://ulisse.elettra.trieste.it/services/elements/WebElements.html Elettra's photoemission cross sections calculations]


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