Title: extrinsic plasmon
Long Title: IUPAC Gold Book - extrinsic plasmon
DOI: 10.1351/goldbook.09331
Status: current

Definition
Plasmon excited as an electron travels through a condensed medium.

Note
The probability describing the number of extrinsic plasmons excited by the electron depends on the path length traversed and, for typical applications of Auger-electron spectroscopy and X-ray photoelectron spectroscopy of a homogeneous sample, follows a Poisson distribution for the parameter \(s/\lambda\), where \(s\) is path length and \(\lambda\) is electron inelastic mean free path.

Related Terms
- Plasmon: https://goldbook.iupac.org//terms/view/09268
- electron inelastic mean free path: https://goldbook.iupac.org//terms/view/09327
- intrinsic plasmon: https://goldbook.iupac.org//terms/view/09342

Source
- PAC, 2020, 92, 1781. 'Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)' on page 1825 (https://doi.org/10.1515/pac-2019-0404)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/09331/html
- json: https://goldbook.iupac.org/terms/view/09331/json
- xml: https://goldbook.iupac.org/terms/view/09331/xml

Citation: Citation: 'extrinsic plasmon' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.09331
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Accessed: 2026-06-11T22:25:41+00:00