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Title: Supersonic N-Crowdions in a Two-Dimensional Morse Crystal

Abstract

An interstitial atom placed in a close-packed atomic row of a crystal is called crowdion. Such defects are highly mobile; they can move along the row, transferring mass and energy. We generalize the concept of a classical supersonic crowdion to an N-crowdion in which not one but N atoms move simultaneously with a high velocity. Using molecular dynamics simulations for a close-packed two-dimensional Morse crystal, we show that N-crowdions transfer mass much more efficiently, because they are capable of covering large distances while having a lower total energy than that of a classical 1-crowdion.

Authors:
;  [1];  [2]
  1. Russian Academy of Sciences, Institute for Metal Superplasticity Problems (Russian Federation)
  2. Saratov National Research State University (Russian Federation)
Publication Date:
OSTI Identifier:
22749980
Resource Type:
Journal Article
Journal Name:
Journal of Experimental and Theoretical Physics
Additional Journal Information:
Journal Volume: 126; Journal Issue: 3; Other Information: Copyright (c) 2018 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7761
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ATOMS; CRYSTALS; MASS TRANSFER; MOLECULAR DYNAMICS METHOD; TWO-DIMENSIONAL CALCULATIONS; TWO-DIMENSIONAL SYSTEMS

Citation Formats

Dmitriev, S. V., E-mail: dmitriev.sergey.v@gmail.com, Korznikova, E. A., and Chetverikov, A. P.. Supersonic N-Crowdions in a Two-Dimensional Morse Crystal. United States: N. p., 2018. Web. doi:10.1134/S1063776118030019.
Dmitriev, S. V., E-mail: dmitriev.sergey.v@gmail.com, Korznikova, E. A., & Chetverikov, A. P.. Supersonic N-Crowdions in a Two-Dimensional Morse Crystal. United States. doi:10.1134/S1063776118030019.
Dmitriev, S. V., E-mail: dmitriev.sergey.v@gmail.com, Korznikova, E. A., and Chetverikov, A. P.. Thu . "Supersonic N-Crowdions in a Two-Dimensional Morse Crystal". United States. doi:10.1134/S1063776118030019.
@article{osti_22749980,
title = {Supersonic N-Crowdions in a Two-Dimensional Morse Crystal},
author = {Dmitriev, S. V., E-mail: dmitriev.sergey.v@gmail.com and Korznikova, E. A. and Chetverikov, A. P.},
abstractNote = {An interstitial atom placed in a close-packed atomic row of a crystal is called crowdion. Such defects are highly mobile; they can move along the row, transferring mass and energy. We generalize the concept of a classical supersonic crowdion to an N-crowdion in which not one but N atoms move simultaneously with a high velocity. Using molecular dynamics simulations for a close-packed two-dimensional Morse crystal, we show that N-crowdions transfer mass much more efficiently, because they are capable of covering large distances while having a lower total energy than that of a classical 1-crowdion.},
doi = {10.1134/S1063776118030019},
journal = {Journal of Experimental and Theoretical Physics},
issn = {1063-7761},
number = 3,
volume = 126,
place = {United States},
year = {2018},
month = {3}
}