Decay of low-barrier metastable state: Middle friction

N. E. Aktaev

    Research output: Contribution to journalArticle

    Abstract

    In the framework of the generalized Kramers theory of physical and chemical kinetics the relation for the decay rate of the metastable state is obtained. The peculiarity of the system is the ratio of the potential barrier height to temperature of the system. This ratio is much less than unity. To study the process we introduce the concept of the effective square of the potential barrier. It is shown that in the limiting case the obtained relation becomes the standard formula (Kramers formula) for the decay rate.

    Original languageEnglish
    Pages (from-to)124-127
    Number of pages4
    JournalKey Engineering Materials
    Volume685
    DOIs
    Publication statusPublished - 2016
    Event4th International Conference for Young Scientists High Technology: Research and Applications, HTRA 2015 - Tomsk, Russian Federation
    Duration: 21 Apr 201524 Apr 2015

    Keywords

    • Brownian motion
    • Decay rate
    • Fokker-Plank equation
    • Kramers equation
    • Maxwell-Boltzmann distribution
    • Metastable state
    • Potential barrier

    ASJC Scopus subject areas

    • Materials Science(all)
    • Mechanics of Materials
    • Mechanical Engineering

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