Title: Fermi energy Long Title: IUPAC Gold Book - Fermi energy DOI: 10.1351/goldbook.F02340 Status: current Definition The total energy of an electron in an uncharged metal at the Fermi level. Related Term - Fermi level: https://goldbook.iupac.org//terms/view/F02341 Source - PAC, 1986, 58, 437. 'Interphases in systems of conducting phases (Recommendations 1985)' on page 440 (https://doi.org/10.1351/pac198658030437) Other Outputs - html: https://goldbook.iupac.org/terms/view/F02340/html - json: https://goldbook.iupac.org/terms/view/F02340/json - xml: https://goldbook.iupac.org/terms/view/F02340/xml Citation: Citation: 'Fermi energy' 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.F02340 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: 2026-06-20T09:52:05+00:00