Il Nuovo Cimento D

, Volume 10, Issue 12, pp 1427–1437 | Cite as

Peierls transition in helical structures

  • D. Gottlieb
  • F. Melo
Article

Summary

In long molecules with helical structure it is shown that the electron’s response functionF(q,T) is singular for various wave vectors. Then deformed phases associated with different periodicites can occur as a function of external pressure. The calculation was done as a function of temperature and for small number of atoms per turn.

PACS 71.30

Metal-insulator transitions 

Riassunto

Si mostra in lunghe molecole con struttura elicoidale che la funzione di risposta dell’elettroneF(q, T) è singolare per vari vettori d’onda. Allora possono verificarsi fasi deformate associate a diverse periodicità in funzione della pressione esterna. Si effettua il calcolo in funzione della temperatura e per un numero ridotto di atomi per spira.

Резюме

В длинных молекулах с геликоидальной структурой показывается, что функция электронного откликаF(q, T) является сингулярной для различных волновых векторов. В связи с этим могут возникать деформированные фазы, связанные с различными периодичностями, в зависимости от внешнего давления. Проводятся вычисления в зависимости от температуры и для малого числа атомов на виток.

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References

  1. (1).
    Highly Conducting One Dimensional Solids, edited byJ. T. Devreese, R. P. Evrard andV. E. van Doren (Plenum Press, New York, N.Y., 1979).Google Scholar
  2. (2).
    The Physics and Chemistry of Low Dimensional Solids, edited byL. Alcacer (D. Reidel, Dordrecht, 1980).Google Scholar
  3. (3).
    Electronic Properties of Inorganic Quasi-One-Dimensional Compounds, Part I, edited byP. Monceau (D. Reidel Dordrecht, 1985).Google Scholar
  4. (4).
    Superconductivity in Magnetic and Exotic Materials, edited byE. T. Metsubara andA. Kotani (Springer-Verlag, 1984).Google Scholar
  5. (5).
    M. J. Rice andS. Strasser:Solid State Commun.,13, 125 (1973).CrossRefGoogle Scholar
  6. (6).
    E. Marsch, W.-H. Steeb andD. Grensing:J. Phys. F,7, 401 (1977).CrossRefADSGoogle Scholar
  7. (7).
    S. Kivelson andD. Heim:Phys. Rev. B,26, 4278 (1982).CrossRefADSGoogle Scholar
  8. (8).
    J. M. Ziman:Principles of the Theory of Solids (Cambridge University Press, 1972).Google Scholar
  9. (9).
    A. J. Heeger:Highly conducting one dimensional solid, edited byJ. T. Devreese, R. P. Evrard andV. E. van Doren (Plenum Press, New York, N.Y., 1979).Google Scholar
  10. (10).
    J. S. Smart:Effective Field Theories of Magnetism (W. B. Saunders Company, 1966).Google Scholar
  11. (11).
    H. Dreyssé, D. Tomanek andK. H. Bennemann:Surf. Sci.,173, 538 (1986).CrossRefGoogle Scholar
  12. (12).
    F. S. Bates andG. L. Baker:Micromolecules,16, 1013 (1983).CrossRefGoogle Scholar
  13. (13).
    M. L. Elert andC. T. White:Phys. Rev. B,28, 7387 (1983).CrossRefADSGoogle Scholar
  14. (14).
    B. K. Rao, J. A. Darsey andN. R. Kestner:Phys. Rev. B 31, 1187 (1985).CrossRefADSGoogle Scholar

Copyright information

© Società Italiana di Fisica 1988

Authors and Affiliations

  • D. Gottlieb
    • 1
    • 2
  • F. Melo
    • 3
  1. 1.Departamento de Física, Facultad de CienciasUniversidad de ChileSantiagoChile
  2. 2.Instituto de Física «El Trauco»SantiagoChile
  3. 3.Departamento de Física, Facultad de CienciasUniversidad de SantiagoSantiagoChile

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