Abstract
The relative importance of the electron and of the spin coupling to the lattice is investigated as mechanisms producing a Peierls transition. Using mean field theory and an exponential dependence of transfer integrals on the degree of dimerization, it is found that the spin lattice interaction makes the most important contribution to the lattice distortion for the metallic phase of the highly correlated quasi-one-dimensional electron system where partially localized magnetic moments are still present.
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