• J.-P. JULIEN
  • D. MAYOU
Conference paper
Part of the Progress in Theoretical Chemistry and Physics book series (PTCP, volume 15)


We compute the velocity correlation function of electronic states close to the Fermi energy, in approximants of quasicrystals. As we show the long time value of this correlation function is small. This means a small Fermi velocity, in agreement with previous band structure studies. Furthermore the correlation function is negative on a large time interval which means a phenomenon of backscattering. As shown in previous studies the backscattering can explain unusual conduction properties, observed in these alloys, such as for example the increase of conductivity with disorder.


Fermi Energy Optical Conductivity Simple Crystal Approximant Phase Irregular Solution 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer 2006

Authors and Affiliations

  • J.-P. JULIEN
    • 1
    • 2
  • D. MAYOU
    • 3
  1. 1.Laboratoire d’Etudes des Propriétés Electroniques des SolidesCNRSGrenoble Cedex 9France
  2. 2.Laboratoire de Physique Théorique et ModélisationUniversité de Cergy-Pontoise and CNRSCergy-PontoiseFrance
  3. 3.Laboratoire d’Etudes des Propriétés Electroniques des SolidesCNRSGrenoble Cedex 9France

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