A generalized approximation of the Fermi-Dirac integrals

X. Aymerich-Humet, F. Serra-Mestres, J. Millán

Research output: Contribution to journalArticleResearchpeer-review

80 Citations (Scopus)


An analytical approximation for the Fermi-Dirac integral F j(η) for real j is proposed. This approximation works for -∞< η < ∞, with an error of 1.2% for -1/2< j < 1/2 and 0.7% for 1/2 < j < 5/2. The error increases with j for higher j values.
Original languageEnglish
Pages (from-to)2850-2851
JournalJournal of Applied Physics
Publication statusPublished - 1 Dec 1983


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