{"term":{"id":"09294","title":"surface plasmon","longtitle":"IUPAC Gold Book - surface plasmon","doi":"10.1351\/goldbook.09294","code":"09294","status":"current","definitions":[{"id":1,"text":"Collective motion of electrons on an interface of two phases which have different permittivity, of which one must have electrical conductivity to sustain the collective motion.","notes":{"1":"Metals such as silver and gold are well known examples of materials exhibiting surface plasmon behaviour.","2":"Collective motion of electrons is induced by an injection of energetic particles, for example photons, electrons, ions, or alpha particles."},"sources":["PAC, 2020, 92, 1781. 'Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)' on page 1816 (https:\/\/doi.org\/10.1515\/pac-2019-0404)"]}],"altoutputs":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/09294\/html","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/09294\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/09294\/plain"},"citation":"Citation: 'surface 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.09294","license":"The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https:\/\/creativecommons.org\/licenses\/by-sa\/4.0\/) for individual terms.","collection":"If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org .","disclaimer":"The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.","accessed":"2026-06-05T00:32:34+00:00"}}