Charge-density waves and superlattices in the metallic layered transition metal dichalcogenides

  title={Charge-density waves and superlattices in the metallic layered transition metal dichalcogenides},
  author={J. A. Wilson and F. J. Di Salvo and S. Mahajan},
  journal={Advances in Physics},
  pages={1171 - 1248}
The d1 layer metals TaS 2 , TaSe 2 , NbSe 2 , in all their various polytypic modifications, acquire, below some appropriate temperature, phase conditions that their electromagnetic properties have previously revealed as 'anomalous'. Our present electron-microscopic studies indicate that this anomalous behaviour usually included the adoption, at some stage, of a superlattice. The size of superlattice adopted often is forecast in the pattern of satellite spotting and strong diffuse scattering… 

On the origin of charge-density waves in select layered transition-metal dichalcogenides

  • K. Rossnagel
  • Physics
    Journal of physics. Condensed matter : an Institute of Physics journal
  • 2011
It is found that the predictions of the standard mean-field model agree only semi-quantitatively with the experimental data and that there is not one generally dominant factor driving charge-density-wave formation in this family of layer compounds.

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