Photoionisation cross section

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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.

Contents 1 Cross section in photoemission 2 See also 3 References 4 External links

[edit] 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.^[1]

[edit] See also

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

[edit] References

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

[edit] External links

• Elettra's photoemission cross sections calculations