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Modeling the oscillations of a copper nanorod using the molecular dynamics method

Abstract

The dynamics of oscillation of a copper nanorod with a length of 16.4 nm and a square cross section with a side of 3.0 nm were studied using the molecular dynamics modeling method. It was found that predominantly longitudinal oscillations arise in the process of relaxation in a stressed nanorod. It was shown that the variation of its potential energy with time does not represent the oscillation dynamics in its entirety. Beats of longitudinal and transverse oscillations of an initially deviated copper nanorod were found, and its Young’s modulus was determined. The obtained results are discussed.

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Correspondence to I. I. Amirov.

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Original Russian Text © A.N. Kupriyanov, O.S. Trushin, I.I. Amirov, 2014, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2014, Vol. 40, No. 21, pp. 1–8.

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Kupriyanov, A.N., Trushin, O.S. & Amirov, I.I. Modeling the oscillations of a copper nanorod using the molecular dynamics method. Tech. Phys. Lett. 40, 937–940 (2014). https://doi.org/10.1134/S1063785014110066

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Keywords

  • Technical Physic Letter
  • Oscilla Tions
  • Longitudinal Oscillation
  • Crystal Structure Defect
  • Excess Surface Energy