Publikation: Pair interaction of dislocations in two-dimensional crystals
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2005
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Physical Review Letters. 2005, 95(18). ISSN 0031-9007. Available under: doi: 10.1103/PhysRevLett.95.185502
Zusammenfassung
The pair interaction between crystal dislocations is systematically explored by analyzing particle trajectories of two-dimensional colloidal crystals measured by video microscopy. The resulting pair energies are compared to Monte Carlo data and to predictions derived from the standard Hamiltonian of the elastic theory of dislocations. Good agreement is found with respect to the distance and temperature dependence of the interaction potential, but not regarding the angle dependence where discrete lattice effects become important. Our results on the whole confirm that the dislocation Hamiltonian allows a quantitative understanding of the formation and interaction energies of dislocations in two-dimensional crystals.
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Fachgebiet (DDC)
530 Physik
Schlagwörter
Direct observation of dislocations and other defects (etch pits, decoration, electron microscopy, x-ray topography, etc.), Linear defects: dislocations, disclinations
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EISENMANN, Christoph, Urs GASSER, Peter KEIM, Georg MARET, Hans Hennig VON GRÜNBERG, 2005. Pair interaction of dislocations in two-dimensional crystals. In: Physical Review Letters. 2005, 95(18). ISSN 0031-9007. Available under: doi: 10.1103/PhysRevLett.95.185502BibTex
@article{Eisenmann2005inter-17015,
year={2005},
doi={10.1103/PhysRevLett.95.185502},
title={Pair interaction of dislocations in two-dimensional crystals},
number={18},
volume={95},
issn={0031-9007},
journal={Physical Review Letters},
author={Eisenmann, Christoph and Gasser, Urs and Keim, Peter and Maret, Georg and von Grünberg, Hans Hennig}
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