Non-local elastic forces in charge-density wave systems

  • Dionys Baeriswyl
  • Lars Kai Hansen
II. Static Properties of CDW Systems
Part of the Lecture Notes in Physics book series (LNP, volume 217)


Analytical expressions for the spectra of phase and amplitude modes of a one-dimensional charge-density wave are given. From these we derive an effective non-local Lagrangian for the phase fluctuations. The range of the non-local elastic forces is found to be of the order of the coherence length C . On this length scale the elastic potential turns out to be larger than the long-range Coulomb potential, when applied to KCP. Our results may have important implications for the theory of impurity pinning.


Elastic Energy Coherence Length Elastic Force Phase Fluctuation Elastic Potential 
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Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • Dionys Baeriswyl
    • 1
  • Lars Kai Hansen
    • 1
  1. 1.Physics Laboratory I, H.C. Ørsted InstituteUniversity of CopenhagenDenmark

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