Langevin equation for hot-electron problems

J. J. Niez, D. K. Ferry

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


In this paper, we build a Langevin equation for the macrovariables of an electronic system in contact with a lattice, when the entire system is in the hot-electron regime. A bridge is established between this equation and earlier ones which give the thermodynamic motion of these microvariables. Finally, by focusing on the Langevin equation for the electronic momentum of the system, we examine the causes of the failure of the first fluctuation-dissipation theorem in its usual form in the stationary (far-from-equilibrium) situation.

Original languageEnglish (US)
Pages (from-to)889-896
Number of pages8
JournalPhysical Review B
Issue number2
StatePublished - 1983

ASJC Scopus subject areas

  • Condensed Matter Physics


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