# 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 language English 124-127 4 Key Engineering Materials 685 https://doi.org/10.4028/www.scientific.net/KEM.685.124 Published - 2016 4th International Conference for Young Scientists High Technology: Research and Applications, HTRA 2015 - Tomsk, Russian FederationDuration: 21 Apr 2015 → 24 Apr 2015

### Fingerprint

Reaction kinetics
Friction
Temperature

### 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

### Cite this

Decay of low-barrier metastable state : Middle friction. / Aktaev, N. E.

In: Key Engineering Materials, Vol. 685, 2016, p. 124-127.

Research output: Contribution to journalArticle

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