Use of the Spin Hamiltonian to Study the Spin-Peierls Instability and Magnetism in Conjugated Polymers

  • L. N. Bulaevskii
Part of the NATO ASI Series book series (NSSB, volume 213)

Abstract

In the framework of Pariser-Parr-Pople π-electron Hamiltonian the spin Hamiltonian (of the Heisenberg type) is obtained for conjugated polymers with half filled π-electron band. Using the spin Hamiltonian the dimerization of molecules like poly-acetylene is treated as spin-Peierls instability. The conditions are studied under which the ground state of π-electron system is ferromagnetic.

Keywords

Anisotropy Benzene Soliton Acetylene Dinates 

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Copyright information

© Plenum Press, New York 1989

Authors and Affiliations

  • L. N. Bulaevskii
    • 1
  1. 1.P. N. Lebedev Physical InstituteMoscowUSSR

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