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On the mobility of interstitials

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Il Nuovo Cimento (1955-1965)

Summary

A temperature-dependent Green’s functions method is used for the calculation of the mobility of interstitials. A quantum-mechanical expression forν 0 in the formulaν=ν 0exp [−U/kT] for the jumping frequency from one interstitial site to a neighbour one is derived. The theory avoids the concept of the transition state, used in classical theories. The interactions of interstitials with phonons are taken explicitly into account.

Riassunto

Si usa un metodo che utilizza le funzioni di Green dipendenti dalla temperatura per calcolare la mobilità degli interstiziali. Si deduce una espressione quanto-meccanica perν 0 nella formulaν=ν 0exp [−U/kT] per la frequenza dei solidi da un interstiziale all’altro. La teoria evita il concetto di stato di transizione, usato nelle teorie classiche. Si tiene esplicitamente conto delle interazioni degli interstiziali con i fononi.

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Gosar, P. On the mobility of interstitials. Nuovo Cim 31, 781–797 (1964). https://doi.org/10.1007/BF02733795

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  • DOI: https://doi.org/10.1007/BF02733795

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