Photoionisation cross section
{{Short description|Aspect of condensed matter physics}}
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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.
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.{{cite journal |last1=Dallmeyer |first1=A. |last2=Carbone |first2=C. |last3=Eberhardt |first3=W. |last4=Pampuch |first4=C. |last5=Rader |first5=O. |last6=Gudat |first6=W. |last7=Gambardella |first7=P. |last8=Kern |first8=K. |display-authors=1 |year=2000 |title=Electronic states and magnetism of monatomic Co and Cu wires |url=http://juser.fz-juelich.de/record/61812 |journal=Physical Review B |volume=61 |issue=8 |pages=R5133–R5136 |bibcode=2000PhRvB..61.5133D |doi=10.1103/PhysRevB.61.R5133|url-access=subscription }}
See also
References
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External links
- [http://ulisse.elettra.trieste.it/services/elements/WebElements.html Elettra's photoemission cross sections calculations]
Category:Condensed matter physics
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