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]

See also

References

  1. ^ 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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