Molecular-dynamics study of collective modes and dislocation ordering in mismatched overlayers
- 1 July 1984
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 30 (1) , 492-494
- https://doi.org/10.1103/physrevb.30.492
Abstract
A molecular-dynamics study of the finite-length Frenkel-Kontorova model is presented. A dislocation depinning and ordering transition driven by soliton interactions is described. Complete phonon and collective-soliton-mode dispersion relations are determined for both well-ordered and pinned-disordered soliton arrays. Local modes, and zone folding due to phonon-soliton scattering, are identified. Possible applications of these results to experimental systems are suggested.Keywords
This publication has 13 references indexed in Scilit:
- Molecular-Dynamics Computer Simulation of the Weakly Incommensurate Phase of Monolayer Krypton on GraphitePhysical Review Letters, 1982
- Incommensurability and recursivity: lattice dynamics of modulated crystalsJournal of Physics C: Solid State Physics, 1981
- Synchrotron X-Ray Study of the Commensurate-Incommensurate Transition of Monolayer Krypton on GraphitePhysical Review Letters, 1981
- Discrete lattice effects in incommensurate systemsJournal of Physics C: Solid State Physics, 1980
- Theory of the structure and lattice dynamics of incommensurate solids: A classical treatmentPhysical Review B, 1980
- Free sliding in lattices with two incommensurate periodicitiesPhysical Review B, 1978
- The theory of structurally incommensurate systems. III. The fluctuation spectrum of incommensurate phasesJournal of Physics C: Solid State Physics, 1978
- Molecular-dynamics study of structural-phase transitions. I. One-component displacement modelsPhysical Review B, 1976
- Computed epitaxial monolayer structures: I. One-dimensional model: Comparison of computed and analytical resultsSurface Science, 1974
- One-dimensional dislocations. I. Static theoryProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1949