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The energy and Peierls barrier of a Frenkel-Kontorova dislocation (kink)

  • Defects, Dislocations, and Physics of Strength
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Abstract

The energy of the potential relief and of the Peierls barrier for a topological excitation (kink) in the Frenkel-Kontorova model is calculated in the continual limit to the second order of perturbation theory. A new method is proposed for analysis of the problem in a strongly discrete limit. Analytical results are compared with the results of numerical calculations.

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Authors and Affiliations

  1. Kharkov National University, Kharkov, 61077, Ukraine

    O. V. Usatenko & A. V. Gorbach

  2. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, Kharkov, 61164, Ukraine

    A. S. Kovalev

Authors
  1. O. V. Usatenko
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  2. A. V. Gorbach
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  3. A. S. Kovalev
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Additional information

__________

Translated from Fizika Tverdogo Tela, Vol. 43, No. 7, 2001, pp. 1202–1206.

Original Russian Text Copyright © 2001 by Usatenko, Gorbach, Kovalev.

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Usatenko, O.V., Gorbach, A.V. & Kovalev, A.S. The energy and Peierls barrier of a Frenkel-Kontorova dislocation (kink). Phys. Solid State 43, 1247–1251 (2001). https://doi.org/10.1134/1.1386458

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  • DOI: https://doi.org/10.1134/1.1386458

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