Publikation:

Elastic Behavior of a Two-Dimensional Crystal Near Melting

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2004

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von Grünberg, Hans-Hennig
Zahn, Klaus

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Physical Review Letters. 2004, 93(25). ISSN 0031-9007. Available under: doi: 10.1103/PhysRevLett.93.255703

Zusammenfassung

Using positional data from video microscopy, we determine the elastic moduli of two-dimensional colloidal crystals as a function of temperature. The moduli are extracted from the wave-vector-dependent normal-mode spring constants in the limit q→0 and are compared to the renormalized Young's modulus of the Kosterlitz-Thouless-Halperin-Nelson-Young theory. An essential element of this theory is the universal prediction that Young's modulus must approach 16π at the melting temperature. This is indeed observed in our experiment.

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530 Physik

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Solid-liquid transitions, Linear defects: dislocations, disclinations, Colloids

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ISO 690VON GRÜNBERG, Hans-Hennig, Peter KEIM, Klaus ZAHN, Georg MARET, 2004. Elastic Behavior of a Two-Dimensional Crystal Near Melting. In: Physical Review Letters. 2004, 93(25). ISSN 0031-9007. Available under: doi: 10.1103/PhysRevLett.93.255703
BibTex
@article{vonGrunberg2004Elast-17260,
  year={2004},
  doi={10.1103/PhysRevLett.93.255703},
  title={Elastic Behavior of a Two-Dimensional Crystal Near Melting},
  number={25},
  volume={93},
  issn={0031-9007},
  journal={Physical Review Letters},
  author={von Grünberg, Hans-Hennig and Keim, Peter and Zahn, Klaus and Maret, Georg}
}
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