Journal article

Incipient quantum melting of the one-dimensional Wigner lattice

  • Fratini, S. Laboratoire d’Etudes des Propriétés Electroniques des Solides, CNRS, Grenoble, France
  • Valenzuela, B. Instituto de Ciencia de Materiales, CSIC, Madrid, Spain
  • Baeriswyl, Dionys Theoretical Physics Group, Physics Department, University of Fribourg, Switzerland
    16.01.2004
Published in:
  • Synthetic Metals. - 2004, vol. 141, no. 193-196
English A one-dimensional tight-binding model of electrons with long-range Coulomb interactions is studied in the limit where double site occupancy is forbidden and the Coulomb coupling strength V is large with respect to the hopping amplitude t. The quantum problem of a kink–antikink pair generated in the Wigner lattice (the classical ground state for t=0) is solved for fillings n=1/s, where s is an integer larger than 1. The pair energy becomes negative for a relatively high value of V, Vc/t≈s³. This signals the initial stage of the quantum melting of the Wigner lattice.
Faculty
Faculté des sciences
Department
Physique
Language
  • English
Classification
Physics
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/299719
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